I would steer clear of this personally because the same company posted something for the Chemistry GRE and it was the BIGGEST waste of money that I have ever spent. I would say that 1/3 to 1/2 of the guide was test taking tips which was total BS. The other 1/2 to 2/3 of the material was such BASIC knowledge that I never used the guide again and was bitter that I spent money on the guide.