I've recently adopted a vegetarian diet and have been enjoying vegan cooking. As much as online recipes are useful there's still nothing quite like a physical cookbook. I have a small collection of recipe books but most are very much centered on the use of animal products and so they are of fairly limited use to me now. I've been looking at the Food Not Bombs books as well as some of the America's Test Kitchen books but I'm curious as to what this community can recommend.

Edit: Thank you for all of the responses! I now have a lot to look into and I apologize for not really being able to respond to all of you individually.