<p>I already have this:</p>
<p>[History:</a> The Definitive Visual Guide - from the Dawn of Civilization to the Present Day: Adam Hart-Davis: Amazon.co.uk: Lindbriar Corporation, Richard Overy, J.A.G Roberts, Ian Harrison, Ann Kay, James Harrison, Rupert Matthews, Thomas Cussans, Simon](<a href=“http://www.amazon.co.uk/gp/product/1405318090/ref=sib_rdr_dp]History:”>http://www.amazon.co.uk/gp/product/1405318090/ref=sib_rdr_dp)</p>
<p>which is fairly comprehensive, although perhaps it goes into too much detail, and so it’s hard to know exactly what to study. </p>
<p>I’m doing World History this December, so have plenty of time to prepare - should I get the Barron’s book or another prep book to supplement the above one, or not bother? (I already have the Official Guide To Subject Tests).</p>