When developing a new course or revamping an old one, look into using open textbooks or other alternative learning materials.
If you are only using a portion of a textbook as required reading, rather than have the students purchase it, consider putting a copy on reserve in the Library. Students can check out the book and read what's needed or they can scan it to refer to it later.
Don't require students to purchase additional study materials from the publishers:
Updates to editions are usually minor. Consider sticking with older editions of textbooks, they are much less expensive.
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License