Does highlighting a passage actually help you remember what you read? You give ten participants three essays of equal difficulty on separate days. For the first essay, no one highlights anything. For the second, you pre-highlight the key points before handing it out. For the third, participants highlight on their own. Each time, participants study for two hours and then answer twenty questions after a thirty-minute break. The group that highlighted on their own scored only slightly better than the other two groups. This project tests whether the popular study habit of highlighting makes a real difference in recall.