Thanks to the May Day Photographers Gayla Ellis, Nick Lethert and Liz Welch for the use of their images. Shadow Puppet Photos by Jemiah Aitch and Charissa Uemura. Thanks to Amy Waksmonski and Brad Dahlgard for their photos of Children and Other Optical Illusions.

Thanks also to Nick Lethert of Lunadomo Design for the creation of this website.