Formal Documents:
* Letter: A formal written message, often used for communication between individuals or organizations.
* Memorandum: A written communication within an organization, used for conveying information or instructions.
* Report: A detailed account of a situation, event, or investigation, often presented in a formal format.
* Proposal: A written document outlining a plan or suggestion, often used to request funding or approval.
* Contract: A legally binding agreement between two or more parties.
* Policy: A set of guidelines or rules governing a specific activity or area.
* Notice: A formal announcement, often displayed publicly.
Informal Documents:
* Email: A digital message sent and received electronically.
* Text message: A short message sent and received via a mobile phone.
* Memo: A brief note or reminder.
* Flyer: A printed sheet of paper used for advertising or announcements.
* Brochure: A printed booklet containing information about a product, service, or organization.
Other Types of Documents:
* Article: A piece of writing published in a newspaper, magazine, or online.
* Blog post: An online journal entry, often on a specific topic.
* Website: A collection of interconnected web pages accessible online.
* Instruction manual: A document providing step-by-step instructions for using a product or service.
* Book: A bound collection of written pages, typically containing a narrative, factual information, or other content.
To give you a more specific answer, please tell me what kind of information you are looking for. What is the topic or purpose of the document? For example, "I need a document that informs me of the new company policy on vacation days."