Review: Very Worthwhile
Rating: 5 out of 5
Date: 08 16, 2013
A concise review of an essential subject.  Many beginners find Aperture to be the most difficult of the triumvirate of camera controls to understand (ISO and Shutter Speed seem to be more intuitive).  This book does an excellent job of explaining the interrelationships amongst the three in clear and simple language, as well as providing good exercises for practice.  The book is intended for an audience of beginners, but that does not detract from its usefulness.