See this at: test-prep.org| Added on 02/29/08

I have worked through most of the guides out there and the OG is one of my favorites. I believe their verbal explanations are only OK.Therefore if you are looking for detailed explanations on solutions this may not be worth your money as you will get... See more

I have worked through most of the guides out there and the OG is one of my favorites. I believe their verbal explanations are only OK.Therefore if you are looking for detailed explanations on solutions this may not be worth your money as you will get the same ... read more. Price: $10.00 See less