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I was nervous about buying this book because there were no reviews so I decided to write something up so it helps people in the future. I have written a couple scripts before for use with ArcMap so I was familiar with a lot of the basics but I wanted something to use as reference for my desk. Also I can skim it occasionally to just see some things I could use in future scripts. This book would probably not be super great for someone trying to learn from the ground up but if you have some basic understanding its great, especially for the less obvious tools. (The things you can do that can't be found in ArcToolbox) It turned out to be exactly what I wanted. The lessons are pretty similar to what you would find online, descriptions, sample scripts, etc. But it goes the extra mile, like I said introducing some modules you wouldn't even think of naturally.