International Edible Book Festival main website
Photos from Edible Book Festival 2012 - University of Kansas Libraries
Seattle Edible Book Festival, with photos each year starting in 2005.
University of Texas at Austin Edible Book Festival, photo galleries since 2005
One of my all time favorites discovered on Flickr a few years ago:
Rosenkrantz and Guildenstern are Bread
Or just do a quick Google Images Search for Edible Book Festival images. You will find galleries of images from all over the world. For everyone who was fortunate to part of an event this year, I hope it was great fun!
And here are a few I've done in previous years: