The first thing to know about studying for the best GMAT training is that this is not a test that you can cram for. Think of it more like preparing for a marathon. You want to build up to Test Day with a plan that gradually enhances your skills and stamina. Because the best GMAT training tests your critical thinking and analytical skills, you need to know how to think flexibly and logically about the material tested. These analytical and critical thinking skills require knowledge of the patterns in the GMAT material. Therefore, it is best to build this type of depth and flexibility in a gradual way.