Description:this book will not teach you a lot. it will, however, point you into a direction where you should venture into if you want to learn directX 2D or 3D. the matrix lessons are a bit too complicated with the way the author explained it, considering that matrix arithmetic is not too difficult. there are a few pages containg cryptic matrix multiplication examples which could have been explained in a few sentences like in lamothe's tricks of the trade book( lamothe explains math better ). but i give it 3 stars for a decent read. it is a good addition to a game programmers collection