This sub-list features texts for all 'levels' of mastery, and published between 2014 and 2019/20. They tend to be 'solid' content, cf 'Dummies Guide' casual:
https://www.reddit.com/r/Python/comments/g2yfml/springer_released_free_ebooks_epub_and_pdf/ -- Regards, =dn -- https://mail.python.org/mailman/listinfo/python-list