The websites I downloaded these from had nowhere near enough porn ads to be considered illegal
WARNING, THIS REPOSITORY MIGHT CONTAIN ITALIAN
for a version of this that doesn't suck ass, and is actually legal, see https://github.com/EbookFoundation/free-programming-books
scavanged from the following (probably) and somewhere else I probably forgot:
http://www.literateprogramming.com/cweb_download.html (for the cweb manual)
https://fsf.org and https://gnu.org (mainly for emacs and elips, but there's also a smalltalk book in there)
https://www.wolframscience.com/nks/ (some chapters were too big to upload so read this one online and fuck off)
allitebooks.whatever, it doesn't exist anymore
pdfdrive.fuckit, you know the one
the books in this repo cover the topics that are written on the fucking directories name so it's self documenting in that regard, and I'm too lazy to list them here
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent