CALI, the Center for Computer-Assisted Legal Instruction , has created a number of ebooks that include the Federal Rules of Evidence , Criminal Procedure  and Civil Procedure . CALI's eLangdell Press provides these ebooks as free downloads. They are available for iPads and Kindles, as well as non-Kindle devices. Rather than carrying around print versions of these titles, you can access them on your e-reader devices.
All Lewis & Clark Law School students, faculty and staff have access to all of CALI's resources. If you need help registering with CALI, contact the reference desk at firstname.lastname@example.org or 503-768-6688.