*A proven system of teaching for teachers, parents, and students who want to learn on their own. *Rev. *Each lesson includes valuable helpful hints. *Lots of examples with step-by-step solutions. *Each new topic is clearly explained. *Each lesson is short, concise, and straight to the point. *Each lesson flows smoothly and logically to the next. *Presented in a simple format that everyone can understand. *Requires only 20 Minutes per day. *A proven system of teaching for teachers, parents, and students who want to learn on their own