There are 2 repositories under freebook topic.
Growth Engineering: The Definitive Guide。全栈增长工程师指南
Black Hat Python:PYTHON PROGRAMMING FOR HACKERS AND PENTESTERS by justin seitz
Open Books Library - https://www.dbooks.org/
Bookintocean V1.0
MBS - Massy Boutakus Searcher : An FTP/HTTP Servers Files Seacher
:green_book: This is free books. https://freebooks.pub
A free book for learning tea roasting in your home.
Books that are free and open source