It's cool that there is a book about learning Construct but I mean..I'm sure all of the info in there (and much, much more) is already on the forums/wiki...and it's free. Not to mention the book could be pretty old and have a lot of outdated info.
Also, there's like 10 pages on how to shoot a bullet. Erm..
I dunno. Looks like a cashgrab to me.