<p>So I want to take the USNCO exam this year, but Im not sure what textbook to use. I've heard mixed reviews about Zumdahl and Atkins, so I'm not sure which of those I should get, or if i should get a different one. So...</p>
<p>Which book is the best at explaining concepts? </p>
<p>And which book as the most/best practice problems and solutions?</p>
<p>Also, Im taking AP Chem this year if that changes anything, thanks!</p>