I bought it just because I want anyone putting in effort to make new Amiga content be rewarded. It's fine as an overview of programming on the Amiga including the tools one has to use in 2020, if programming on an Amiga itself anyway. But there's nothing in it that isn't in the old OS 2 / 3 documentation so I hope at least he does a volume 2.
Also the print quality was awful with weird chemical blotches on the sandpaper it was printed on.