I am looking for books like this
Operating Systems: Three Easy Pieces (http://pages.cs.wisc.edu/~remzi/OSTEP/). The book is high quality yet free.
Not sure if you've seen this,<p><a href="https://github.com/EbookFoundation/free-programming-books/blob/master/free-programming-books.md" rel="nofollow">https://github.com/EbookFoundation/free-programming-books/bl...</a><p>Edit,<p>There's also, <a href="https://www.reddit.com/r/csbooks/" rel="nofollow">https://www.reddit.com/r/csbooks/</a>