Is this a good book?

Test Preparation
1

<p>I am taking APUSH right now. Our textbook is "A People and A Nation" (4th edition). I am having trouble understand the textbook but I found these 2 books.</p>

<p><a href="http://www.harpercollins.com/global_scripts/product_catalog/book_xml.asp?isbn=0064671119%5B/url%5D"&gt;http://www.harpercollins.com/global_scripts/product_catalog/book_xml.asp?isbn=0064671119&lt;/a&gt;&lt;/p>

<p>and </p>

<p><a href="http://www.harpercollins.com/global_scripts/product_catalog/book_xml.asp?isbn=0064671003%5B/url%5D"&gt;http://www.harpercollins.com/global_scripts/product_catalog/book_xml.asp?isbn=0064671003&lt;/a&gt;&lt;/p>

<p>I was wondering if these books will help me in my AP course and how does the info in these books compare with whats tested on the AP exam?</p>