Mitch wrote the book on AWS tools.
No, seriously, he did.
Actually, Mitch Garnaat has written a bunch of stuff. He wrote boto, the excellent Python library that talks to AWS-based backends, and on top of that he wrote euca2ools, which is the free software client of choice worldwide for sending management commands to AWS, and to Eucalyptus, and to OpenStack Nova (well, the parts that have been written yet, anyway.)
Now he’s written an actual book about how to manage your AWS instances with Python and Boto.
I would argue that Mitch Garnaat is the authoritative voice on AWS command line management tools, and this book cements the place that he has already claimed for himself.
Well done, Mitch. Well done.