SDN Members don't see this ad. (About Ads) this was asked a really long time ago, but I'm looking if anyone has new insights on the 7th edition First aid CK vs Step up to step 2? Anyone take the test recently, and do well have any preference on these two books. I have both and was flipping through them. Step up seems more succinct but the diagrams are better in FA. I'm currently just using world + secrets, but need a book to review subjects im weak in.