If you’ve ever posted to Flickr a Creative Commons licensed photo tagged with “thumbs up,” and made it available for use by Attribution, congratulations — you made this project possible. So this is a big thank you to the thumbs-uppers and the photographers: Thank you for making these fun pictures, thank you for licensing your work to be used, and thank you for making sure I never, ever flash a thumbs up at a camera.

Sorry it's so expensive, but it's based on Blurb's costs.

For more projects go to keaggy.com or follow @keaggy on Twitter.