Hi DutchDude555,
Based on what you have posted, I assume that your Score Goal is 700+. That Score is approximately the 90th percentile, meaning that 90% of Test Takers either CAN'T or WON'T do what it takes to earn that type of Score. By extension, there are NO study materials that can 'guarantee' you that type of result. This is meant to say that while you could certainly begin your studies with some books, you will likely need some additional non-book practice materials to earn a 700+ on Test Day.
Since it sounds like you're just beginning your studies, then it would be a good idea to take a FULL-LENGTH practice CAT Test; you can take 2 for free at
www.mba.com (and they come with some additional practice materials). If you want to do a little studying first, so that you can familiarize yourself with the basic content and question types, then that's okay - but you shouldn't wait too long to take that initial CAT. That score will give us a good sense of your natural strengths and weaknesses and will help provide a basis for comparison as you continue to study. A FULL CAT takes about 3.5 hours to complete, so make sure that you've set aside enough time to take it in one sitting. Once you have those scores, you should report back here and we can come up with a study plan.
I'd like to know a bit more about your timeline and goals:
1) What is your goal score?
2) When are you planning to apply to Business School?
3) What Schools are you planning to apply to?
GMAT assassins aren't born, they're made,
Rich