A study guide is a helpful tool designed to assist students in preparing for exams or understanding course material. It often includes summaries of key concepts, important terms, and practice questions. By organizing information in a clear and concise manner, study guides make it easier for learners to review and retain what they have studied. Many students create their own study guides, while others may use guides provided by teachers or found in textbooks. Utilizing a study guide can enhance learning efficiency and boost confidence before tests, making it an essential resource for academic success in subjects like math, science, or history.