Separate editions of textbooks

[X]

I noticed a number of separate editions of the textbook Prentice Hall Algebra 1, some of them separated by state and for whether it's a teacher or student edition. I can't confirm how different the content is between one edition and the next. I would assume the student and teacher edition should be different books, but should the different state editions be separate as well?

[rivka, Former Moderator]

No.

And in most cases, the teacher and student editions are not all that different either and can also be combined. (One exception: In some cases the teacher book is only supplemental, and does not include the content in the student edition. Usually such editions are much shorter.)