Hi all,
A book with a good amount of writing on Pd was issued on Dec.1 here in Japan.
http://shop.cqpub.co.jp/hanbai/books/MBC/MBCZ201001.html
As you may have guessed, the book is about building projects on the Arduino board. However, around half way through the book, it begins to devote pages on a thorough description of Pd and Firmata including a Pd reference. Projects in the later half of this book are mainly driven in Pd and nearly no Arduino code is listed..
The book appears to be categorized as a Mook (Magazine + book... is this term common elsewhere?) and does not have an ISBN assigned.