Best SAT US History Subject Test Review Book???????

Hi,
I have seen threads that say a few of the good review books for the US history subject test but none have definitively given an answer. I know Barron’s is wayyyy harder than the actual test and that Princeton review is a little bit easier. Which is the best book to get?
Thanks so much

DS’ APUSH teacher recommended the Princeton review book. We also got him the five step to five book. He prefers the Princeton one. He will be taking the subject test and AP exam in May.

Thank you so much. Does anyone who has taken the test have any suggestions?

@macs122 Watch your time. Especially the DBQ and Long Essay. I remember almost not finishing both of them because the test directions only give a “recommended time to transition to the second essay”