A study guide is a helpful tool that students use to prepare for exams or understand complex subjects. It often includes summaries of key concepts, important terms, and practice questions. By organizing information in a clear and concise way, study guides make it easier for learners to review and retain what they've studied. Many students create their own study guides, while others may find them online or in textbooks. They can cover a wide range of topics, from mathematics to literature, and are especially useful for subjects that require memorization or critical thinking. Using a study guide can boost confidence and improve performance on tests.