Uncle Bob's videos are the classics of the genre. They explain the craft, methods and reasons with absolute clarity. They are a great source of knowledge and motivation to become a cleaner coder. They are entertaining, perfect for the beginners but they also have enough ideas interesting for experienced programmers.
The next sessions are dedicated to Behavior Driven Development (BDD). We meet on the 18th of July to see episode 35 (https://cleancoders.com/episode/clean-code-episode-35/show):
"Programming is one thing; writing programs that meet the needs of the business is another. How do the business people and the programmers communicate?
In this episode we're going to introduce the concept of Acceptance Testing and Behavior Driven Development (BDD) as a means to enhance that communication."
This time the meetup is hosted and sponsored by iteratec GmbH (https://www.iteratec.de/).