When you decide to take the GMAT, you can either be a member of the GMAT Preparation Center or sign up for a membership with one of the many online tutoring services available. However, before you sign up with a tutoring service, there are some things you should know and keep in mind when you do. View more: https://www.educator2u.com/best-gmat-coaching-start-your-course-by-best-tutor.html