It's hard not to make some very derisive comments about this book, because it is a horribly written and organized book. There are very few examples given, no review of the material and/or testing of comprehension by the "complete idiot" who may be reading the book, and concepts are poorly introduced and clarified. In my estimation, this book is a waste of hard-earned money. To be honest, I've had the same experience with every "Complete Idiot" book I've purchased, and I have, now, purchased my last one.