A precis is a condensed summary of a document that is approximately 1/3 the length of the original. It involves carefully reading the document to understand the main topic and key details, then rewriting it in your own words in a clear, succinct manner using indirect speech. The precis should have a title, include all essential information, and be a cohesive whole while omitting unnecessary examples, illustrations, or repetitions. Writing a precis is a valuable exercise that teaches concentration, understanding a document's most important ideas, and expressing ones thoughts concisely.