A "Cheat Sheet" is a concise set of notes used to quickly reference important information. Often created for exams or complex subjects, these sheets summarize key concepts, formulas, or processes, making it easier for students or professionals to recall essential details without extensive study. Cheat sheets can be physical papers or digital documents, and they are commonly used in various fields, including education, programming, and business. They help streamline learning and improve efficiency by providing quick access to vital information, thus enhancing performance in tasks or assessments.