Informal reviews often take place at different stages of the life cycle of a document. They start out as a two-person team and work their way up to more than two people and a meeting as it goes along. Informal reviews are often conducted as follow-ups to other review.Informal Reviews is a powerful revision or review tool. It provides a simple yet effective process for revising your current work or your future project, and for making it easier to organize and share edits.