This work, "free-programming-books", is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA. It is attributed to Victor Felder, the Free Ebook Foundation, and contributors. https://github.com/EbookFoundation/free-programming-books