As a home school mother, I’m always looking to find online textbooks cheap. Recently my daughter starting taking a English class online. When she started this, she was told that she’d be able to get the book second hand from a previous student or online. She opted for online, as she felt that she’d always have it with her as long as her laptop was with her. She got the book and the access code that went with it. It’s worked great. She loves having access to the book easily on her laptop.