This book is AMAZING - full of good tips on how to navigate in Disneyland and California Adventures, as well as REAL ratings on the rides and restaurants. There's also info about hotels in the area.
The illustrations are a bit weird, and not Disney themed like in the other books (because it's not endorsed by Disney), it's definitely not a "visual" type book, but there's a lot of good information packed in there.
My copy is full of highlighter marks...