<p>i recently acquired the book and would like to know if it is useful from experience. I was told it is harder than usually (which seems like a good thing) and it's not worth the time. It is the 13th edition btw.</p>
<p>i recently acquired the book and would like to know if it is useful from experience. I was told it is harder than usually (which seems like a good thing) and it's not worth the time. It is the 13th edition btw.</p>