Is there a difference between a new edition of a textbook and a old edition?

I hate spending an arm and a leg for a new edition of a textbook. i usually dont need it by the end of the semester. Is there a huge difference in editions?Is there a difference between a new edition of a textbook and a old edition?
It depends. However, many texts will actual discuss changes from the previous editions in the preface.



Some editions are completely different. But most just have subtle changes. You will have a difficult time finding page numbers, however, if you use an old book.Is there a difference between a new edition of a textbook and a old edition?
Possibly more pictures, reference materials or lab work. It just depends on what class you are taking.

I usually go to the University Library and make copies of the additional pages or text and keep the copy with me in class. Ask the librarian for the updated edition and then make copies.