<p>So while studying from the 2009th edition of this book, I've noticed a ton of glaring errors all over the book. And after reading the reviews and such, I hear that this book is poorly formatted, errors everywhere, and is harder than its own good. I heard that the problems in this book is more difficult than anything else on the actual test. Is the book supposed to be this difficult in order for you score better? Should I continue studying from this book or should i switch to something else that would be better fit for the test?</p>
<p>Get PR. it has everything, and is more clear</p>