Free Photo Book anyone?? Shutterfly is offering a Free 20-page 8×8 Photo Book when you use coupon code SUMMERBOOK at checkout! If you’d like something bigger, use the code to get a $23.99 to upgrade to a larger size book. The 10×10 size is new, so that might be a good option as well! The 20% sitewide price for the 10×10 is $35.99 and when you subtract the $23.99 credit, it only costs $12! Think holiday gifts, mementos for your family and more!