Pressbooks - Create books: print and ebooks
Mockupea - Mockupea is an online tool for creating 3d book mockups with a lot of features.
Time Capsule - Transform your 2020 into a tiny, personalized book for free!
Stackoverflow '90s - Bring back '90s to Stackoverflow with this extension
Read This Twice - Verified book recommendations from people we look up to
Box Shadow Generator - Generating CSS3 multilayer box-shadow has never been easier.