I encourage you to check out the picture-licious Seattle Street Art Book Vol. 1 by august tarantino and his lovely site of a similar name: http://www.seattlestreetart.com/ And just this summer 2012, Vol. 2 is out... a continuation of the work. Check the website to get a closer look and order these coffee table beauties.
The book is 50 pages and 100 images, offered cleanly and without comment, covering some of the most prominent and interesting Seattle street artists around... Phaedrus, No Touching Ground, Baldman, Little Bird, PG and HBF Crew... and many more who's nomikers I don't even know!
A "Visual Time Capsule Beyond Graffiti" this book is an all-images book capturing work from the aesthetic to the political. You could cut pages from these books and past them directly on your wall, they are so rich.
It would be nice to read a little more detail of the artists, their motivations and tribulations perhaps, or some more context for the art itself. But despite that these are books you will certainly treasure and enjoy sharing with your friends.
(disclaimer: this book and my blog are not associated, save for a love of street art in Seattle.)