Final answer:
Written communication between two departments in a company is typically made by a memo, which is an internal document that is less formal than a business letter. Business letters are more formal and typically used for external communication or formal internal correspondence.
Step-by-step explanation:
Business Documents: Memo vs. Letter
When it comes to written communication between two departments of a company, the most appropriate format would typically be a memo (memorandum). Unlike a business letter, a memo is a less formal type of written communication used within an organization to convey information, directives, or updates. Memos are designed to be clear, concise, and direct, serving as an efficient means of communication between departments. On the other hand, business letters are more formal and often used for external communication or more formal internal correspondence. They follow a specific format and are used in scenarios such as inquiries about job openings, formal requests, or when conducting formal correspondence with individuals outside the company.
Furthermore, effective verbal and written communication skills are vital for success in the workplace. In professional settings, it is essential to always be precise and to make a positive impression online, which includes following netiquette guidelines.