The 10% off voucher at the top of this page is the lead offer from eCampus, for renting three or more textbooks using the code at checkout. This is best if you need at least three rental books, since it takes 10% off the whole rental order and cannot be stacked with other offers.
Small rental order (one book), Use the 5% off rental book code or the 5% off purchase code. For a single rental title the rental specific code is the clearest fit. For example, on a $60 rental order, the 5% code takes 5% off (percent 5%), leaving $57, so you save $3.
Two rental books, Use the 7% off code for two rental books. On an $80 rental order for two books, the code takes 7% off (percent 7%), leaving $74.40, so you save $5.60.
Three or more rental books, Use the 10% off voucher at the top of this page. For a $150 rental order of three books, the code takes 10% off (percent 10%), leaving $135, so you save $15.
Buying sale textbooks, Check the seller sale first. The sale offers up to 90% off on marked sale textbooks, and that can beat any percent off code. If the titles you need are in the sale you will usually pay the sale price with no site code required; compare the sale price with what a 10% code would do to your rental total before choosing.
First time customer or low spend, Signing up to the newsletter is listed as a route to special offers, but it is not a checkout code and is not the page lead. If you are only buying one low priced item and prefer to wait for a welcome offer, sign up and watch your email for any first order promotion; otherwise use the 5% code for a single rental.
OUR RECORDS: eCampus has listed 58 offers in the 12 months to October 2026 (56 codes and 2 sales). Percentage codes were common, 52 in that period, with the biggest code at 10% off and the typical code 7% off. The biggest percentage sale or deal in that time was up to 90% off.
When choosing between the codes and the sale, take whichever leaves the lower total for the same items. Apply the 10% code when you meet the three or more rental requirement, the 7% code for two rentals, and a 5% code for one rental or for a non rental purchase where that code applies. Codes cannot be used with other offers, and sale prices apply only to sale products, so compare the final prices and pick the option that gives the lower checkout total.