This document discusses meetings, including definitions, types, purposes, advantages, disadvantages, and requirements for a valid meeting. A meeting is defined as an assembly of two or more people to reach decisions through discussion. Common types include formal, informal, private, and public meetings. Main purposes are to discuss issues, announce information, review projects, and celebrate successes. Advantages include sharing ideas and knowledge, while disadvantages include time costs and difficulty controlling large groups. Requirements for a valid meeting include proper notice, agenda, chairman, quorum, and minutes.