'The User Is Always Right' and other thoughts about personas

Steve Mulder recently announced to the IA Institute and IxDA mailing list that his book on user research and personas,
The User Is Always Right, is now available:

If you attended the IA Summit in Vancouver, you might have heard me give a preview of some of the book’s content on adding more science to persona creation. The book is a hands-on guide to creating personas (with advice on getting the most out of a variety of user research methodologies, generating persona segmentation, and making personas real) and using personas for everything from overall business strategy to IA, content, and design.

Mulder also blogs at PracticalPersonas.com, where recent posts question whether quantitative methods are required for creating personas (he says “not always“), and whether it’s wise to include a grump among your personas.