Easy Outlines are concise, easy-to-use versions of the biggest and best-selling classics in the Schaums Outlines series. This is a continuation of the Schaums Easy Outline Series, successfully launched in 1999. The annual enrollment in Differential Equations is 100,000. Every book in the series is a pared-down, simplified, and tightly-focused version of a top-selling Schaums Outline. In the aggregate, these titles have sold more than 4,000,000 copies. Format will be streamlined and updated for a contemporary look and feel.