Yep, I needed it a phrmacology class. I'm a nursing/ biology double major. From what I understand it's a pretty universal text book, needed for a few different classes regardless of which school you go to. It's got a lot of practical stuff in it, too, how to do procedures, etc., so even if you're a practcing healthcare professional or in CNA, nursing school or beyond, it's a really good reference. I just have so many books on the topics covered that I needed to clean out my book case a bit.