A memo or memorandum is a communication note that records events or observations on a topic. Memos are typically used within a business environment as an interoffice communication tool and can serve many purposes. Today, emails can be considered a common type of memo. For example, they call attention to issues that may need to be resolved, they update clients and other colleagues on the status of active projects, and finally, they give solutions to colleagues on issues that are related to the project being worked on. They are good tools to provide a concise method of delivery.