If you want to use this textbook for your course, you can simply download the .pdf file and then upload it to your campuses course management software. Your students can then download the whole thing for free.
If your students want a paper copy (most of mine do) you can send the .pdf file to the copy shop your campus bookstore works with and have them print copies, just like a regular coursepack. The Creative Commons license on the inside cover of the text proves you have legal right to reproduce the text. My college bookstore charges $5.95 for the text.
