<p>I was wondering which one of those books are usually better for reviewing for SAT II's... especially the Biology E/M SAT II exam...</p>
<p>In general, for the SAT IIs, Barrons is more in-depth. Princeton Review is okay for last-minute cramming or just a quick review.</p>
<p>Ok thanks.</p>
<p>I agree with immortalix’s general description of the two, but for Biology in particular, PR seems to be a fairly sufficient review so I would not fret if you only have time for one and chose to review with PR.</p>