I have updated my book to the latest Lumberyard as of March 2019: Lumberyard 1.18. The book has been expanded with 2 new chapters and all chapters were re-worked to use the new PhysX gem (instead of legacy physics). Enjoy!
P.S. GitHub for the book is here: https://github.com/Aristo7/LYBook_1.18
P.P.S. If you buy a print copy, you get ebook for $2.99 but only on US markets :`(