[.ca] Schaum's Outline of Machine Design (ISBN 0070255954)

good value, practical and readable:
This is the book I reach for first. The scope is broad, the presentation is readable, and it is full of well chosen, practical example problem solutions. The illustrations are clear and informative - not just filling up the pages with useless photographs and mind-numbingly silly captions as some of the other authors in the field have done. Hall, Holowenko and Laughlin have covered all the standard topics, as well as the other writers on machine design. And the price is reasonable.

Schaum's helps make it click...:
I'm using this as a supplement in a class where the professor is not always easy to follow. The worked problems are really helping me. I wish there was some info on Mohr's Circle though. That would make this book go hand in hand as a study guide for Machine Design.