Some information in my college level Anatomy and Physiology textbook is about a decade (if not more) out of date? The information does not only cause a lack of understanding, but also encourages a misunderstanding.
What should I do? If I contact the publisher, how should I do it?
I'd prefer not to give specifics, as this is a fairly popular publisher.
P.S: I included "book-recommendation" as a tag as it was the most appropriate tag available.