Abe Books
Details: 10% off, up to $15. Ends 9/1/13.
Alibris
Details: Save $1 Off Any Order with Coupon Code. Valid for a limited time only.
Half Price Books
Details: Get Up to 80% Off Textbooks
LoveBook online.com
Details: 15% off entire purchase
Harlequin
Details: Get 40% Off Summer Love Books Sale
awesomebooks.com
Details: 20% off used but not bargain books
Powell books
Details: Get 20% Off Select Titles - Japanese Fiction Sale, For a Limited time + Free Shipping on Orders over $50 or More
SAP Press
Details: $5 Off on Books Ends 6/30/12
Martha Stewart Living
Details: Free Gardening Tips
Premiere Collectibles
Details: Free shipping
A Book Apart
Details: Save over 15% on HTML5 & CSS3 Web Designers Bundle.
Classical Conversations Books
Details: Free Shipping on Online Orders over $175 of Shippable Items
Hay House
Details: Receive 10% off Sitewide on self improvement books, newsletters, audios, videos and books at Hay House.
University of Nebraska Press
Details: 30% Off on Any JPS Books to JTS Students, Faculty and Staff
ALA store
Details: $5 Off of Making Sense of Business Reference
ignatius.com
Details: Up to 15% Off on Best Sellers Books
Bookstore Genie
Details: Free Shipping