Rec me, Friends! Cozy books

What are friends for, other than those great book recommendations that hit us in such special ways?

The weather is cooling down, and it's time to get cozy. So let's share some of our favorite cozy books to get us through the dark times. All genres welcome - cozy fantasy, cozy mystery, cozy romance. Cozy sci-fi?

We may also have a side quest to discuss this article and how "cozy" may be defined in books:
https://people.com/cozy-spicy-romance-novels-cozyverse-exclusive-11845649