Eugene Ciurana

First, the book is kinda short and it doesn't provide any detailed information.

Second, there are also many errors and inconsistencies in the code and the text (missing lines in different code samples in the book and a few non-working examples).

Overall, for a beginner, I think that this book is still a little better for introduction to the Google App Engine then the official Google documentation.

Anyway, if you will be developing anything more advanced, the official documentation will still be your best friend :-)… (més)