For purchasing books, I recommend that you drop in to your favorite local book store.  If they don't have the book you're looking for, you can have them order it for you.
Here are a few bookstores in the Seattle area.
Elliott Bay Book Co.
1521 10th Ave
Seattle, WA 98122
Phone: (206)624-6600
Email: queries@elliottbaybook.com
Web: www.elliottbaybook.com
Queen Anne Avenue Books, Ltd.
1629 Queen Anne Ave N
Seattle, WA
Phone: (206)283-5624
The Secret Garden Children's Bookshop
6115 15th Ave NW
Seattle, WA
Phone: (206)789-5006
Fax: (206)789-2816
University Book Store
4326 University Way NE
Seattle, WA
Phone: (206)634-3400
Email: ubsbooks@u.washington.edu
Web: www.bookstore.washington.edu
Ravenna 3rd Place Books
6504 20th Ave NE
Seattle 98115
Contact Carole for help finding out of stock and out of print books.
If you are a bookseller and you would like to be listed here, please contact me at contact@clschaefer.com.