I recently took the 0146 Praxis test and passed. However leading up to the test I spent way too much money on study guides that were useless and expensive. That said I did find one guide that was very helpful and one that was not. I use a GED study guide to study for the test. It had all the areas I needed to study plus is cover briefly everything I needed to know for the test. If you are taking the test, spend the money on a GED study guide and possible a math refresher study guide. I also paid money for the ETS guide and it was worthless for this test. Good luck.