Does anyone know the differences between these two AP Euro books (edition question)?

<p>Last year I took AP Euro and we had Kagan's The Western Heritage Since 1300: 10th Edition, AP Edition.</p>

<p>I kinda missed the book so I ordered it off the internet. When I got it I found out that they had sent me the 9th AP Edition. Is there a drastic change? From the looks of it they just changed the cover and font.</p>

<p>bump, 10 char.</p>