I have checked this book out from the library so many times that I've finally ordered a copy from Amazon.
There are 34 knitting patterns and 16 crochet patterns. I can only address the knitting patters as I know nothing about crochet. The knitting patterns are for either beginner's or intermediate; the biggest decision is which afghan you'll want to make first.
The pattern's were first published in Family Circle Magazie between 1997 and 2001. All of the patterns are very contemporary and use a variety of different yarn types - Lion Brand, Patons, Plymouth, Red Heart, Crystal Palace, Mission Falls, etc.
I have been on an afghan kick, looking at many knitting books with afghan patterns. This book is one of the best!