Just saw about Python Humble bundle [1]. Al Sweigart, author of some of the books in the bundle, put up a post on reddit [2] adding details about the books in the bundle. Python Software Foundation gets benefited from this bundle.[1] https://www.humblebundle.com/books/python-programming-no-starch-books
[2] https://www.reddit.com/r/Python/comments/csl01v/humble_book_bundle_python_programming_by_no/