A summary is a shortened form of a document that includes the main idea and important details, conclusions, and any recommendations. Summarizing can save a busy reader time by providing just the essential information in a shorter format. To create a summary, one should scan the document, highlight the most important sentences, and put the key details, conclusions, and recommendations into their own words in a concise summary of 3 sentences or less without extra details. The summary should be edited for correctness.