A notebook was an electronic document format commonly used to record short information such as meeting minutes, meeting notes, inspirations, plans, etc. The format of the memos generally included the following parts: Title: The title of the memos should be concise and concise, and should accurately summarize the contents of the memos. 2. The content of the Memo should include the information to be recorded, such as time, place, person, event, purpose, etc. 3. Date: The memos should contain the date of the recorded information for subsequent review and confirmation. 4. Contexts: The context information of the memos can help readers better understand the contents of the memos, such as the background, participants, consequences, etc. of the recorded events. 5. Signatories: The author of the memos can leave his signature at the end of the content to indicate the authenticity and reliability of the memos. Memos were a very practical electronic document format often used by individuals, teams, organizations, and other situations to record and organize work.