Collaboration

Andere drücken die Schulbank, wir aber wollen in gemütlicher (und realer) Atmosphäre wieder aufeinandertreffen und einen Deutsch-Spanisch-Tandemkurs aufleben lassen. Beim einfachen Zusammenkommen und kennenlernen lässt es sich schließlich viel effektiver lernen. und Spaß haben. ...

Easter Monday carries a different kind of energy — somewhere between a long weekend, a fresh start, and the feeling that spring is finally here. This Social Butterfly Club Meetup brings that energy into a relaxed Monday evening. A space to connect, share conversations, and start the week with a bit more lightness and curiosity. 🌷 There might be a few small Easter surprises hidden around — nothing too serious, just a playful excuse to look around, smile, and maybe start a conversation with someone new. 🐣 Whether you’ve spent the weekend with people, by yourself, or somewhere in between — this is a chance to step back into the city and connect. ✨ Suggested Ice Breaker Question: “What has been a highlight of your long weekend?” Orga This meetup is donation based. Your contribution helps keep this community alive and is highly appreciated. You can either contribute in cash or via Buy me a Coffee: [https://buymeacoffee.com/butterflyradar](https://buymeacoffee.com/butterflyradar) Questions? Check our Meetup-FAQs: [https://socialbutterfly.berlin/meetup-faq/](https://socialbutterfly.berlin/meetup-faq/) Meet your host I’m Julia — a Berlin local who loves bringing people together. My path went from growing up in a dance school to studying philosophy to working in IT support, and somehow all of that led me here: hosting meetups and creating spaces where people can show up, relax, and connect. Insta [https://www.instagram.com/juwaberlin/](https://www.instagram.com/juwaberlin/) LinkedIn [https://www.linkedin.com/in/julia-waehnert/](https://www.linkedin.com/in/julia-waehnert/) About The Social Butterfly Club 🦋 is a Berlin-based community that has been bringing people together for over three years. Each gathering is part of a larger framework designed to help friendships grow through shared experiences in the city — with a long-term vision of turning Berlin itself into a shared, playful experience. Love the vibe? There’s a whole community waiting for you. 🦋 Join the Social Butterfly Club and experience Berlin together Join our Telegram Group: [https://t.me/+OnASVWZ7emhjYzEy](https://t.me/+OnASVWZ7emhjYzEy) Subscribe to our weekly newsletter: [https://socialbutterflyradar.substack.com/](https://socialbutterflyradar.substack.com/) 🌸 Support us with a monthly membership: Become a Founding Flutterer for 14.95€/month and help the Social Butterfly Club grow. Your support keeps the project alive and helps us continue creating spaces where people in Berlin can meet and connect. [https://steady.page/en/social-butterfly-club/](https://steady.page/en/social-butterfly-club/)

**Post Stretch festival chill-out** For **GBTQ men\*** Village warmly invites all Stretch participants to join this free gathering — to connect, say goodbye, and enjoy the exhibition. On Monday after the three-day Stretch festival, we invite all Stretch participants to meet at Village for one last hug before heading home — a moment to slow down together and reflect on the weekend. You’ll also have the chance to experience **Instinct #20 _ Radical Empathy: Queer Perspectives on Conflict, Resilience & Connection** in a private viewing. At 4pm, Eric LeRouge will offer a curatorial tour. Let’s spend time together. Village warmly invites all Stretch participants to join this free gathering — to connect, say goodbye, and enjoy the exhibition. Tea and snacks will be available. 🔵 **Post Stretch festival chill-out** Fur **GBTQ men\*** Am Montag nach den drei Tagen Stretch-Festival laden wir **alle Stretch participants ins Village** ein – für einen letzten gemeinsamen Hug vor der Abreise, um zusammen runterzukommen und das Festival Revue passieren zu lassen. Nach den drei Tagen Stretch-Festival laden wir alle Stretch participants ins Village ein – für einen letzten gemeinsamen Hug vor der Abreise, um zusammen runterzukommen und das Festival Revue passieren zu lassen. Außerdem gibt es die Möglichkeit, die **Ausstellung Instinct #20 _ Radical Empathy: Queer Perspectives on Conflict, Resilience & Connection** in einem Private Viewing zu erleben. Eric LeRouge bietet um 16:00 Uhr eine kuratorische Führung an. Gemeinsam Zeit verbringen! In diesem Sinne lädt das Village alle Stretch participants herzlich zu diesem kostenlosen Treffen ein – zum Austauschen, Abschiednehmen und Kunst erleben. Tee und Snacks stehen bereit.

Join us for a writing on the train trip to Lutherstadt Wittenberg (1hr 27m). Leave Berlin Hauptbahnhof at 10:40am, Platform 2 - B Arrive Lutherstadt Wittenberg Hbf at 12:07pm, Pl. 4 Once there we'll walk for a bit, find a cafe. We'll return on the train at 14:52 to Berlin, arriving at 16:19. Feel free to also read on the train.

🥾 Es wird Frühling 🌱🌸 Das heißt, es ist Zeit, mal wieder raus in die Natur zu gehen. Wer ist mit dabei? ☀️ Was? Tegeler Flies Weg – ca. 14 km – ca. 4 Std. inkl. kleiner Picknick-Pause ☀️ Wann? Ostermontag, 06. April 2026 – 12 Uhr bis ca. 16 Uhr ☀️ Wo? Treffpunkt ist auf dem Bahnsteig des S-Bahnhofs Mühlenbeck-Mönchmühle (S8) Enden werden wir am S-Bahnhof Tegel (S25) Der Weg führt am Tegeler Flies entlang, durch Moorlandschaften und mit Glück sogar Wasserbüffeln 🐃 bis zum Tegeler See. ☀️ Es wird auch die Möglichkeit geben nach ca. 10km mit der S Bahn wieder Richtung Berlin zu fahren, wer kürzer unterwegs sein möchte. Denkt gerne daran, euch was kleines zum snacken und trinken einzupacken. 🧉🥪🥨🥒 Anmeldung: https://forms.cloud.microsoft/e/Uq6F6JBLnQ Wir freuen uns auf Euch! 💜🧡 Spring is here 🌱🌸 That means it’s time to get back out into nature. Who’s in? ☀️ What? Tegeler Flies Trail – approx. 14 km – approx. 4 hours, including a short picnic break ☀️ When? Easter Monday, April 6, 2026 – 12:00 PM to approx. 4:00 PM ☀️ Where? We’ll meet on the platform at the station \* S Mühlenbeck-Mönchmühle\* (S8) We’ll end at the Tegel S-Bahn station (S25) The route follows the Tegeler Flies, through moorland, and with a bit of luck, we might even spot water buffalo 🐃, all the way to Lake Tegel. ☀️ There will also be an option to take the S-Bahn back toward Berlin after about 10 km for those who’d like to keep the hike shorter. Please remember to pack a small snack and something to drink. 🧉🥪🥨🥒 Registration:https://forms.cloud.microsoft/e/Uq6F6JBLnQ We look forward to seeing you! 💜🧡

We'll meet at 10 am at "Nah am Wasser" around the biggest table in the corner – pass by the bar and turn left. We will do two sessions of 45 minutes of writing and two breaks. We will start the first writing session at 10:15am. Please don't forget to **order drinks to support the place.** Looking forward to seeing you at the meetup! In between sessions, we have a Telegram chat: https://t.me/joinchat/ERW3pxD5kfELGeWs9SUhjw https://shutupwrite.com.

Communicative, collaborative and creative drawing sessions. Participants draw a central still-life that the group can create themselves until the music track finishes and then pass it to the person on their left. The drawings change hands 3 to 5 times and the end results are always inspiring. After the collaborative warm-up participants can work individually on printing techniques, Mono -printing, tetra-pack or gelli. -printing. Feel free to try out a process that you are unfamiliar with. There will always be somebody to offer advice if necessary Bring A4 paper, and favourite materials, pencils & brushes. You can also use some studio materials in exchange for a small contribution. A fun but informative approach with consistently creative results!

🚀 Workshops: The Human-Digital Synthesis **Kultur\-Technik 2026 \| Women in Big Data Berlin** AI is no longer a future concept—it is already reshaping how we work, create, and make decisions. The real question is: **how do we use it intelligently?** *Kultur-Technik 2026:* *The Human–Digital Synthesis* draws from the European idea that technology is an extension of human culture. In this interactive session, we bring together the Women in Big Data Berlin community to explore how humans and AI will collaborate, build, and evolve together. This is not a passive event— it’s a space to **learn, discuss, and create together.** The event is hosted by **Ojin AixHaus.** Ojin AixHaus is the new, collaborative community space in Berlin Mitte, where scientists, machine learning engineers, founders, creators, and AI enthusiasts come together to build and learn about the future of AI. Ojin AixHaus is free to join, open for startups in residency applications and is currently curating their 2026 events calendar. If you have a burning idea for an event, meetup or hackathon - bring your fire, they bring the space! **💡 Event Details 💡** **1\. Choose and Participate Your Workshop \(60 mins\)** Participants will get to choose and join one of two parallel tracks onsite, and co-create a “chapter” for the final showcase. 🧠 **TECH TRACK: Collective Intelligence & AI in Companies** Facilitator: Dr. Katarzyna Stoltmann Co\-Founder\, Women in Big Data Berlin \| Head of Data Science & AI How do companies truly get the best out of AI? The answer: **collective intelligence**. This session explores: * What collective intelligence means in practice * Which tasks and roles will evolve with AI * Whether AI replaces work—or creates new opportunities ✍🏼 Hands-on focus: Designing end-to-end AI solutions at scale—thinking through how humans and AI systems collaborate to deliver impact for millions of users. 🖼️ Output: A conceptual demonstration of a **“context-aware agent architecture”** 🌟 **IDENTITY TRACK: Visibility & Personal Branding in the Age of AI** Facilitator: Angeley Mullins Founder & CEO, Aetheris Ventures In a world where content and ideas can be generated at scale, how do you stay **visible, credible, and distinctive**? This session explores: * How to position your *human voice* in an AI-driven landscape * What defines authenticity and value in 2026 * How to use AI as a co-creator, not a replacement ✍🏼 Hands-on focus: Define your personal narrative, identify your unique “signal,” and build a strategic approach to visibility through guided exercises and peer exchange. 🖼️ Output: A **“Visible Self Prototype”**—your personal positioning, key content angles, and a simple plan to build credibility and presence in an AI-shaped world **2\. Grand Finale: The 2026 Showcase \(45 mins\)** We come together to share insights from each group: * Tech track presents the “Brain” (AI Agent concept) * Capabilities track presents the “Voice” (Personal Brand & Visibility Strategy in the AI era) We will have networking afterwards where you can continue sharing your ideas! 🗓 **Date: 9 April 2026** **⏰ Time: 18:00 – 21:30** **📍 Location: Ojin AixHaus \| Chausseestraße 36\, 10115 Berlin** Why do we need these workshops? Because AI is moving so fast! - and so should we. Join us to: * Understand AI beyond the hype * Learn how to use it strategically and responsibly * Connect with a community shaping the future 👉 **Choose your track. Join the conversation. Build what’s next. We look forward to seeing you next week!** Find out more here: [Ojin AixHaus Community ](https://ojin.ai/community) Follow Ojin AixHaus on socials: [Instagram](https://www.instagram.com/ojin.ai/#) [Linkedin](https://www.linkedin.com/showcase/ojin-aixhaus/) [X](https://x.com/Ojin_AI)

Hey everyone! I’m organising a co-working + socialising session for all of us who like to work on something (e.g. our own project, freelance or remote work) but don't feel like sitting alone at home. 🙂 To ensure that we have both **socialising** AND **working**, we will be using the so called “Pomodoro” technique: **50min of deep work** (silent), followed by **10min of break** to socialise. Then repeat! If you get into flow, you're also welcome to skip the breaks. It’s an effective way to stay focused - you can read more about it [here](https://en.wikipedia.org/wiki/Pomodoro_Technique). Anyone from any background is welcome, whatever project you are working on or whatever is your personal background. I (the host) speak English and German, so either is fine :-) ——————————————————- AGENDA: * **15min Intro** * Get to know everyone, talk about what you will work on today * **Pomodoro Session** (3x) - *Each Pomodoro session consists* *of...* * ...**50min** of uninterrupted “deep work” (no talking, no interruptions, no phones) * ...**10min** of break: share your progress with others, talk about what you are stuck on etc. * Repeat * Conclude and celebrate your progress Share your progress, socialise and get to know others 😊 ———— We'll be at the Social Hub Berlin (they have a food menu in case you get hungry). The structured part will end at 2:30pm, but you're welcome to stay longer, go for lunch together, or leave earlier. See you there 🩵 **\*\*We'll reserve the long table. Please update your RSVP in advance if you can't attend!\*\***

**Join us for outdoor grass volleyball in Hasenheide park!** This event is not suitable for complete beginners. We play with two nets. The "chill court" is for mixed-level play with 3v3 up to 5v5. The "competitive court" is for higher-level 2v2 play with beach rules. Be sure to wear suitable sports clothing and perhaps bring a drink. There are no facilities such as changing rooms and showers in the park. A nearby public toilet is also available, but it might be closed, dirty, or not have toilet paper. **Location**: We play in the narrow clearing, located between the two paths in the center of Hasenheide park, on the southern side. Updates will be posted in the WhatsApp group, which you can join via [https://tinyurl.com/ParkVolley](https://tinyurl.com/ParkVolley) **RSVP**: Put yourself on the waitlist, even if other people are already on there. The waitlist is not chronological, so even if there are 30 people on there, you still have a chance! If you get a spot, you will be moved to the attending list and notified by Meetup. This is a free event with limited space. **If you can't make it, promptly update your RSVP to NO** so others can take your place. If you do not show up or cancel last minute, you will be marked as a no-show, reducing your chances of getting off the waitlist in the future. **Payment:** This event is free, but you are invited to make a 2 EUR donation towards equipment. **Attending**: Do not join if you have an infectious disease. You need to be on the attendee list to attend; **being on the waitlist is not sufficient**. Do not bring friends that are not on the attendee list. **Showing up without having a valid RSVP will get you banned**. **Safety**: Mind the terrain. The grass might be uneven and contain items such as bottle caps. It is not suitable for diving or playing like on a beach. Be careful not to twist your ankle. Keep an eye on your belongings since we are in a public park. We do *not* have a full first aid kit available. Please inform the organizer of any medical conditions that might require attention during the event. Some things you *might* want to bring: \* Drink \* Snacks \* Insect spray \* Sunscreen \* Toilet paper, if you wish to use the public toilet Join our WhatsApp community via [https://tinyurl.com/ParkVolley](https://tinyurl.com/ParkVolley) Follow us on Insta at [https://www.instagram.com/berlinvolleyball](https://www.instagram.com/berlinvolleyball) Pictures might be taken and shared publicly, such as on Meetup or Instagram. You can opt out by letting the organizer know you do not wish to be photographed. By RSVP'ing to this event, you acknowledge and agree to the following: Participation in this volleyball event is at your own risk. The organizer is not responsible for any injury, loss, or damage sustained during the event, whether caused by negligence or otherwise. You are aware of the inherent risks involved in park volleyball and voluntarily assume these risks. You agree to hold the organizer harmless from any claims, liabilities, or expenses arising from your participation, including any medical costs. Share anonymous feedback with the organizer via https://www.admonymous.co/entropy

Hello! I’m organising a coworking + socialising session for all of us who are working on projects (e.g. our own creations, freelance or remote work) but don't feel like sitting alone at home. 🙂 To ensure that we have time for both socialising AND working, we will be using the so-called “Pomodoro” technique: **50 mins deep work** (silent), followed by **10 mins break** to socialise. And then repeat! You are welcome to join whatever your personal background is, and whatever project you are working on. I (the host) speak English and German, so either language is fine. ——————————————————- AGENDA: * **Short Intro** Tell us who you are and share something about what you will be working on today * **Pomodoro Session** \- 3x \(3h\) Each Pomodoro session consists of 50 mins focused “deep work” (no talking, no interruptions, **phones on silent mode**) -> then 10 mins break: a chance to share your progress with others -> Repeat * **15 mins Wrap Up** Celebrate what you achieved and get to know others 😊 ———— The location is **Espresso House near Checkpoint Charlie** (they have multiple outlets - so be sure to go to the correct one!) Wifi + power plugs are available - but best to bring a fully charged laptop, just in case 🙃 You **do not** have to pay anything. But since we are using the café space, it is common courtesy to buy at least one drink (coffee costs roughly **4 Euros**).

Join us for chill **outdoor** beach volley at **Funkhaus Beach**! 🏐 🏐 🏐 ☀️ This event is for everyone who enjoys chill games and is not a *complete* beginner (A1.5+). We play 3v3 (or 4v4) with beach rules. There are no trainers at this event. Register via [the simultaneous event](https://www.meetup.com/berlin-volley/events/) for higher-level 2v2 matches (F1+). After playing, you can join us for socials with drinks and snacks at the bar area. We often play a social deduction game, which you're also welcome to join. We play in domes that are heated up to at least 15C. It's recommended that you come 10 minutes early so you have time to change and find the fields. If it is your first time, 15 minutes might be even better. You can join whatever court you like and move between courts during the event. We self-organize, so once you finish a game, you can start a rematch, mix with another court, or take a break as you see fit. Upon arrival, join the warmup happening on one of the courts. Join our WhatsApp community via [https://volley.berlin/WhatsApp](https://volley.berlin/WhatsApp) ([QR code](https://secure.meetupstatic.com/photos/event/b/f/d/5/highres_532249109.webp)) Follow us on Insta at [https://www.instagram.com/berlinvolleyball](https://www.instagram.com/berlinvolleyball) **Rules**: Do not join if you have an infectious disease. For everyone's safety, we do not allow kicking the ball during games with beginners. Be respectful of your fellow players. **Venue**: We play at [Funkhaus](https://sporthaus-berlin.net/), **outside** ☀️. Changing rooms are available in the nearby Paddle hall. **Payment**: You pay in advance via Meetup. Payment via PayPal or Urban Sports Club is not possible. **Refunds**: The venue does not provide refunds. Thus, we cannot refund you either, even if the event is canceled due to bad weather. If you know you can't make it in advance, you can try selling your spot to someone else via WhatsApp or the comment section. In the rare cases that we cancel an event due to poor attendance, everyone gets a full refund. Pictures might be taken and shared publicly, such as on Meetup or Instagram. You can opt out by letting the organizer know you do not wish to be photographed. By RSVP'ing to this event, you acknowledge and agree to the following: Participation in this volleyball event is at your own risk. The organizer is not responsible for any injury, loss, or damage sustained during the event, whether caused by negligence or otherwise. You are aware of the inherent risks involved in beach volleyball and voluntarily assume these risks. You agree to hold the organizer harmless from any claims, liabilities, or expenses arising from your participation, including any medical costs. Share anonymous feedback with the organizer via [https://www.admonymous.co/entropy](https://www.admonymous.co/entropy)

Welcome to Sunday Tech Coffee. This is a **networking** event for those in the tech industry in Berlin. We are usually inside and to the right. Ask the barista/bartender if you can't find us.

[The Board Walks](http://www.theboardwalks.com/) are for curious people who love deep conversations. If that sounds like you, **bring a thoughtful topic** and join us for a 5-mile walk (10,000+ steps!). **HOW IT WORKS** **Step 1: Bring a topic** Before you arrive, think of **one** topic you want to explore. A question. A thought that's been on your mind. An obsession you want to geek out on. This is your ticket to the event. **Step 2: Circle up & share** We gather in a circle. Your friendly walk host gives a speech to set the tone. Everyone shares: your name, what you're grateful for, and your topic. That's it. 60 seconds. **Step 3: Walk, talk & float** We walk 5 miles. You naturally drift into conversation with 2-3 people at a time, pulled by topics that spark your curiosity. When you're ready to move on, just say: "I'm going to float!" **Step 4: Feel more alive** Two hours flies by. You're back where you started — but you feel different. More alive. More energized. More connected to yourself and others. That's why regulars join 20+ times. *For more details, read our [Orientation Guide.](https://www.theboardwalks.com/orientation)* **HOW TO BRING A GREAT TOPIC** A great topic = something you're genuinely curious about. Recent topics include: * "What are you passionate about right now?" * "What makes a good friend?" * "What's a belief you used to hold that you've completely changed?" * "How do you want to be remembered?" * "What would you do if money wasn't a factor?" Think of your topic like the dish you're bringing to our conversational potluck. If everyone brings an A+ dish (i.e. energizing, uplifting, expansive), we'll all walk away feeling lighter and brighter. **WHAT TO EXPECT** This isn't a fitness event with casual chitchat. It's a walking think tank where we explore life's big questions together, beyond small talk. *If you're looking for light banter or a standard networking event, this probably isn't the right fit.* But if you crave depth, genuine connection, and conversations that make you feel alive? You'll love it here. **FAQ** * Wear casual athletic attire and sneakers. It's a long walk! * We have multiple first-timers at each event. We work hard to create a welcoming, inclusive, clique-free space. * We welcome people of **all** ages, backgrounds, and industries who align with the [intention](https://www.theboardwalks.com/ground-rules) of this space. * Rain or shine, we've been out here nearly every week since July 2022. If the event is cancelled, we'll let you know. * Dogs, babies in strollers, parents, and friends are welcome — please text/email them the event link so they can RSVP and prepare a topic! **LOGISTICS** * If you'll arrive over 10 minutes late, we suggest skipping the event. It's hard to find us once we start walking, and your host can't answer messages during the event. * This walk is designed for everyone to *move together at the same steady pace* (about 20 min/mile). This format works best when the whole group moves in unison. If you have mobility limitations, we kindly encourage you to find an event better suited to your needs. * Read our [Orientation Guide](https://www.theboardwalks.com/orientation) for full details. * If you enjoy the event, send **[this](http://www.theboardwalks.com/)** to a friend or sign up for our **[newsletter](https://theboardwalks.beehiiv.com/)**. We're in multiple cities with more on the way. 🤠👋 **IF YOU WANT TO GO DEEPER...** [The Board](https://stan.store/ellebeecher/p/the-board) is the next step: a high-trust collective for renaissance people devoted to creating, connecting, and building lives that light us up. * This is a global HQ for people who crave big talk, deep connection, and dream collaborations with people across industries. If the walks feel like a spark... The Board is the fire. Apply [here](https://stan.store/ellebeecher/p/the-board).

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** GitHub Copilot is powerful, but what if you could scale from a solo AI assistant to an entire team of specialized agents working in parallel? This session introduces Squad: an open-source framework for multi-agent orchestration that lets you define teams of AI agents with specific roles, responsibilities, and expertise. We'll progress from Copilot basics to the Copilot CLI, explore how Agents add autonomy, and see how Instructions and Skills let you customize agent behavior. Then, the climax: a live demo where a Squad team of 3 agents (Lead, Developer, Tester) stands up and builds a working application in real-time, showcasing true multi-agent collaboration. Whether you're new to AI or exploring how to scale your use of Copilot, this session will show you what's possible when agents work as a team. **YouTube Link** TBD

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. **New to electronics or curious about tinkering?** You’re absolutely welcome. If you’re a beginner and want to experiment, I’ll have a couple of starter kits available so you can try things out—whether that’s blinking your first LED, putting something on a display, or experimenting with simple sensors. No pressure and no experience required—just an interest in learning and building. While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability. This session will be at the Worthington Park Library in the Olentangy Meeting Room.

AI is changing how art is made. But when does it stop being your work and start being the machine’s? This month we're going to be doing a panel with with digital image, music, and written word artists, talking about at what point, while using AI in the creation process, does the work become not the artist creation? We encourage audience participation during this event that will be moderated by Chris Slee. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.transformlabs.com/services)

Pay attention! We’re delaying a week for those of you who may be on Spring break and/or celebrating the holiday. Ok, no pancakes, but waffles-a-plenty. Join the local UX and Digital Design community for a casual monthly breakfast. Look for us upstairs!

The Fellowship of the Star Schema: Transforming OLTP Data for Power BI One does not simply build reports on OLTP data. Join us on an epic journey from the depths of raw, normalized tables to the shining halls of a well-modeled star schema fit for Power BI greatness. We will demystify the differences between OLTP and OLAP, walk through star schema vs snowflake (and why Power BI has a clear favorite), and show you the compression differences between normalized and columnar storage that will make you never look at an OLTP model the same way again. We will cover the different types of dimensions, when to use them, and how to handle Slowly Changing Dimensions without losing your mind. You will leave knowing exactly how to identify a bad model, how to convert OLTP data into a clean star schema, and how to forge relationships that rule them all. Whether you are a data wizard, a curious hobbit, or somewhere in between, your models will never be the same.