Précis writing is the art of summarizing a document to convey essential information in a succinct manner, preserving only the main ideas and being shorter than the original text. Key characteristics of a good précis include clarity, correctness, objectivity, coherence, completeness, and conciseness, each contributing to effective communication. To create a strong précis, writers should read the source material thoroughly, underline important points, omit unnecessary details, and ensure their summary is well-structured and written in their own words.