<p>[Amazon.com:</a> American Government: Institutions and Policies (Advanced Placement Edition) (9780618562442): James Q. Wilson, John J. DiIulio: Books](<a href=“http://www.amazon.com/American-Government-Institutions-Policies-Placement/dp/0618562443/ref=sr_1_1?ie=UTF8&qid=1248845800&sr=8-1]Amazon.com:”>http://www.amazon.com/American-Government-Institutions-Policies-Placement/dp/0618562443/ref=sr_1_1?ie=UTF8&qid=1248845800&sr=8-1)
and
[Amazon.com:</a> American Government: Institutions and Policies (9780618556625): James Q. Wilson, Jr., John J. DiIulio: Books](<a href=“http://www.amazon.com/American-Government-Institutions-James-Wilson/dp/0618556621/ref=pd_cp_b_1]Amazon.com:”>http://www.amazon.com/American-Government-Institutions-James-Wilson/dp/0618556621/ref=pd_cp_b_1)</p>
<p>My school apparently uses the first one, but I bought the second one. The only difference to me is that the first one is for an advanced class… they both look like the same thing though</p>