Author here, this is a book I've been writing in the past few months about my favourite game-making framework of yet - a port of the excellent flixel framework for Haxe.
HaxeFlixel 4.0.0 came out just a few weeks ago and it's a massive update with lots of improvements - great time to start making games if you ever wanted to experiment with this field.
Thanks! I've used Game Maker and Unity in the past, but with HaxeFlixel something just clicked. The fact that it's open source and free to use as well is really the cherry on the cake.