There is A LOT of material available. Online and in paper form. Things to keep in mind:
> You need to be somewhat particular of 3rd party material because it isn't written by the real test writers, but companies who want you, their student, or potential client, to see certain things. Some material is better (more realistic) than others, some easier, some harder. Often the bigger the company, the more of a one-size-fits-all approach, which means less nuances are covered in their overall material. For the students intending to achieve among the highest scores, this method might not be specific enough for their needs and more difficult without a tutor parseing through exceptions to rules, etc..
> Official material on paper or online is the best stuff you can use. It should be your bible. From there, make sure you're using straightforward material (see above client). Most test takers aren't as sensitive to the material as 'experts' so talk to a few people and see whose material they think are best. (I of course, will tell you why I believe my company's is the best, )
> Remember, there are 3 things you want to make sure you have in place from a tutor and/or class: that they deal with content mastery, strategy (and architecture of the test) and positive mindset. Every student NEEDS positive mindset to achieve their peak scores (assuming they have content down.)
> At first, you should not focus on timing. That comes later. Get the skills and concepts down, then learn to do in the right time.
If you want, we have material that identifies some of your strengths and weaknesses. You can take the quizzes and we can score and evaluate them.
Note: It is quite comprehensive because of who actually did create it. Our head verbal tutor is a PhD in cognitive linguistics - - which means she is able to understand HOW people process language. Her specialty, among others, is working with non-native English speakers. So our material and approach has this bend - - whereas other companies by and large, are more English-speaking-centric.
Being a boutique company, we are able to put into place material that is more comprehensive than most of the other material out there. We're able to teach exceptions instead of 'blanketing' concepts and rules. If a student really wants to get 700 - 800, we can easily service them with talented staff AND materials.
If interested, I'd be happy to mail you and score/evaluate (all free) our GMAT test-taking quiz to learn what type of learner, what your strengths are and what you need to do to address your weaknesses. This information would help point you in a direction of what you can do to improve your score. Feel free to be in touch by email or phone.
Regardless...Good Luck!