O'Reilly Using Google App Engine

The book describe step by step how to create google app and upload it to the cloud.The example are in phyton.
The book is created for a student with no technology background , so it cover web sites aspects for people with no technology background, so if you have technological this book is too slow for you, and you will need to skip on most of it..
The author of this book have a website with a lot of documentation of all kinds (include videos of step by step).
bottom line if you just want to focus on the cloud and not learn web this book is not for you.