Students can rent a textbook for any length between 30 and 360 days, with options to extend or buy. (MIKE SEGAR/REUTERS)

You may not want to even think about textboooks right now, but back-to-school is coming whether you like it or not. On Monday, Amazon announced that it will begin renting textbooks on the Kindle, much to the joy of your average college student’s back and posture.

Most importantly, however, the digital texts are likely to help their wallets as well. The online retailer promised savings of up to 80 percent with a flexible plan that lets students have their digital copies for between 30 and 360 days.

Students can also extend their rentals for a short a time as a single day or opt to buy the book.

The deal even works if you’re a margin-doodler, er, dedicated annotator like me, since you can save your notes to the digital Kindle file and even view them on your tablet, smartphone or computer later. Amazon will even let you access those notes and highlights after your rental has expired.

Competitor Barnes and Noble also has a digital textbook rental service, which lets you rent books for a term of 60, 90 or 130 days to download onto a computer.

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