The right preparation is essential for easily passing the GRE, especially if you have been out of school for a while. The first step in finding what type of guide you need is knowing what level of mathematical knowledge you already possess. You can do this simply by taking a pre-test. Don’t assume you know nothing, as sometimes your memory can surprise you, so save yourself the hours studying if it isn’t necessary. Another factor is your personal learning style, as each guide has a different approach on delivering information. Visual, auditory (listening to information), hands on (kinaesthetic), reading/writing, or a combination of learning are some of the characteristics to look for when assessing your personal tendencies. The majority of learners identify with kinaesthetic or visual. If you are unsure, there are many simple assessments online that can help you find out. Lastly, but probably one of the most important factors, is time. Whether you are looking to take the exam in months, just a few weeks or allowing for years to soak in the information, the curriculum chosen plays a big role. Some are specially designed for individuals looking for just a quick refresher vs. if you need to completely relearn one or more concepts. Once you know what you need to learn, how you learn, and how much time you have to study, it will be easier to choose which GRE study guide will best suit your personal needs.