Here some books about Flickr just released, an exerpt from the flickr blog:

How to Use Flickr: The Ditigal Photography Revolution

This books is a great introduction to Flickr, both in the sense of flickr.com, the website, and Flickr, the, um … socially constructed conceptual framework for a new model of online interaction. It not only runs down the features, but contains a lot of great interviews, sidebars, stories of how people use Flickr, ettiquette, and notes on how the features are getting used and the social dynamics that have evolved. Definitely the book to get a friend or loved one you are trying to "convert" to Flickrism.

Flickr Hacks: Tips and Tooks for Sharing Photos Online

Part of the venerable O’Reilly ‘Hacks’ series of books, and co-authored by Paul Bausch (Blogger co-founder and inventor of the permalink!) and Jim Bumgardner (creator of the Flickr Colrpickr and collaborative posters), this book is for the more technically adept Flickr user who’s interested in stretching Flickr functionality to the limits, through the website as well as through the API. With a great forward by Flickr co-founder Caterina Fake.

Flickr Application Development with PHP

This one we haven’t read (it’s not out yet, but is available for pre-order from a few places) but it’s clearly intended for the real geek/programmer, toiling away building new services, sites, features and products using our APIs.