We strive to deliver the best value to our customers and ensure complete satisfaction for all our textbook rentals.
You can return your online books for any reason within our refund period – no questions asked.
Every order is available for express shipping, and return shipping is always free.
You'll be happy with the quality of your books (or we'll ship you another one on our dime).
You can extend your rental up to 14 days – at the same cheap daily rental rate.
If you decide to keep the book it will never cost more than the purchase price.
As always, you have access to over 5 million titles. Plus, you can choose from 5 rental periods, so you only pay for what you’ll use. And if you ever run into trouble, our top-notch U.S. based Customer Service team is ready to help by email, chat or phone.
Supplemental materials are not guaranteed for used textbooks or rentals (access codes, DVDs, workbooks).
Spectrums: Our Mind-boggling Universe from Infinitesimal to Infinity
From the author of The Joy of Pi and The Flying Book, an engaging new guide to the amazing unseen world around us.How can we understand the world of the atom or the size of our galaxy? How do we grasp a billionth of a second or a billion years; the freezing point of helium or the heat generated by the blast of an atomic bomb? Spectrums answers these...
From the author of The Joy of Pi and The Flying Book, an engaging new guide to the amazing unseen world around us.How can we understand the world of the atom or the size of our galaxy? How do we grasp a billionth of a second or a billion years; the freezing point of helium or the heat generated by the blast of an atomic bomb? Spectrums answers these questions and many more by exploring realms we are familiar with in our daily lives, but whose extremes boggle the mind and inspire a sense of wonder. With relish and insight, Blatner re-introduces us to six fundamental spectrums in the world around us: numbers, size, light, sound, heat, and time. Offering fascinating glimpses of hidden realities, full of comparisons, facts, and anecdotes, and illustrated by a wealth of diagrams, photographs, and sidebars, Spectrums illuminates the full range of the bizarre and beautiful world in which we live.
WHAT'S BONUS TIME?
Normally, new semester rental orders are exactly 125 days.
With “Bonus Time” you can order early and get a FREE extension until 12/19*.
It’s our little way of rewarding you early renters for planning ahead.
But do hurry. The “Bonus Time” offer runs out on 8/8 (11PM PST).
* It can take up to 24 hours for the extension to appear in your account after you receive your textbooks.
Since launching the first textbook rental site in 2006, BookRenter has never wavered from our mission to make education more affordable for all students. Every day, we focus on delivering students the best prices, the most flexible options, and the best service on earth. On March 13, 2012 BookRenter.com, Inc. formally changed its name to Rafter, Inc. We are still the same company and the same people, only our corporate name has changed.