I learned about Going Candid: An Unorthodox Approach to Street Photography (PDF download, 8.6 MBs) via a post by its author, Thomas Leuthard, on Google+. I downloaded the eBook and have enjoyed both the images and straightforward approach to street photography described by Thomas.
If you're interested in candid photography in general, or street shooting specifically, I think you'll find these nuggets of wisdom useful in this free download... and share it with your friends!
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