The McGraw-Hill is an okay book to study from. I also bought the ATI and use that with the McGraw-Hill to get the score I wanted. My best advice to you is to do all the practice tests, study what you miss, use online resources like khanacademy.org, youtube, other study websites and testprepreview for addtional practices. The sticky at the bottom of the first page also helps, plus if you browse around you might find some threads where people give more specific advices on the TEAS. Good luck.