Revision techniques are strategies used to improve understanding and retention of information. Common methods include summarization, where students condense material into key points, and self-testing, which involves quizzing oneself on the subject matter. These techniques help reinforce learning and identify areas that need more focus. Another effective technique is the use of visual aids, such as mind maps or flashcards, which can enhance memory through visual representation. Group study sessions can also be beneficial, as discussing topics with peers encourages deeper comprehension and different perspectives on the material.