I bought it, tried to use it and got stumped in Chapter 3, the book uses 4.7.x and I started in 4.10.1, I even backtracked to 4.8.3 and the code base in UnReal changed to the point I couldn’t make it work. Biggest problem was no way to contact Author or a good forum stream for answers, maybe I will try and see if anyone here gone through book with current version of Engine and resolved the issues.