Using the Crash Course Books for AP Chem and APUSH...

<p>I really like the concise and efficient way these books present information and I want to know if these would be good books to study for these tests. I'm a HUGE procrastinator and I know in my heart that this type of method is right for me. However, if there are really MUST USE books for the <em>NEW</em> AP Chem test and the same old AP US test, I'm all ears.</p>