It's not always kind to do this, but I have to call out the review by Ja J. This is a fantastic book. While some of the pictures aren't great, there's nothing wrong with the layout. Yeah, you can get the reference sheets for free, but they don't tell you the whole story. I can't imagine why he would give one star to this book. Many other awesome games have free options, including Stars Without Number.
[5 of 5 Stars!]