There are thousands of vocabulary words that one must memorize to perform optimally on the GRE, TOEFL or the SAT. Other available programs only give you a word and its definition. Moreover, they give you all of the words at once, which makes them very difficult to learn. Dr. Word Master gives you the ability to learn words gradually, distributing words over multiple lessons. For example, if you need to memorize 1000 words, you can create a profile where each lesson contains 100 words. This way it will only take you 10 lessons. Start Dr. Word Master, select your profile and you are ready to start learning vocabulary. In most cases, going once through an entire lesson will ensure outstanding memorization. However, you can repeat lessons as many times as you want. A lot of people prefer smaller lessons with 25 – 35 words. I recommend going through the whole lesson in the morning, during the lunch break at work, and in the evening. If you only have several weeks to prepare for your exam, you have the option of having longer lessons.