An eagerly-awaited (and now much-celebrated ;-) update of the author's previous field guide(1)
. Currently this is probably the best book resource for overall info on galls of the western U.S., with coverage of diverse gall taxa on a wide range hosts groups, as well as abundant insights into their biology and ecology.
The publisher's web page is here
. A good amount of info, and a taste for the quality of content & presentation, can be gleaned from the "Look Inside" preview accessible through the Amazon web page for the book.