sentences:  Schaum's Outlines
  
  Schaum's Outlines () is a series of supplementary texts for American high school, AP, and college-level courses, currently published by McGraw-Hill Education Professional, a subsidiary of McGraw-Hill Education.The outlines cover a wide variety of academic subjects including mathematics, engineering and the physical sciences, computer science, biology and the health sciences, accounting, finance, economics, grammar and vocabulary, and other fields.