Is the latest OG required

I think with the 2 sets of books, you should be good to go! Ofc, if you buy a new OG it might be better but with the sets you have, there is no shortcoming.

Hi subaru2019,

To answer your immediate question: No - you do not necessarily need a newer version of the Official Guide for your studies (either of those older versions would be fine). That having been said, while the OG books are great sources for practice questions, they're not designed to teach you Tactics, patterns or the little 'secrets' behind the GMAT - for those, you'll need Course-oriented materials. To that end, you might want to work on the OG a little later on in your studies.

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 take the GMAT?
3) When are you planning to apply to Business School?

GMAT assassins aren't born, they're made,
Rich

Hi subaru2019,

There will be some overlap between the two books, so using just the 2017 version is fine. If you need any further advice regarding your study plan, feel free to reach out.