Several weeks ago I recieved a copy of Pro PHP GTK by Scott Mattocks in the mail. The first surprise, upon opening the package, is that the book is a hardback - a first for me (at least, for a tech book). I assume this is the norm for all APress books these days, which is very cool as the cover price didn't seem to be inflated because of it.
He takes you through a quick tour of the book, mentioning the introductory chapters, a 'ride' through the world of PHP-GTK2 (including widgets), and an example application.
Davey notes that he wouldn't call it a 'fast reader', but the book is still a great resource and he would highly recommend it. It reminded him of how flexible PHP really is, even at creating client-side graphical interfaces.