Final answer:
Memos feature a clear and relevant subject line that represents the main point, and do not typically include a salutation or complimentary close. They focus on conveying the message succinctly, with a well-structured body that outlines the purpose clearly.
Step-by-step explanation:
Memos are a common form of communication in the professional world, and one of their key characteristics is having a subject line. The subject line serves the crucial function of indicating the main point of the memo, providing a clear and concise description that allows the reader to quickly understand the memo's purpose and refer back to it when necessary. Unlike letters, memos usually do not include a salutation or complimentary close, nor are they structured into detailed paragraphs, but instead get straight to the point in a succinct manner. The subject line is vital as it should be specific enough for the recipient to identify the memo's content easily, making it easier for them to prioritize and respond. Furthermore, when crafting a memo, it's important to ensure that the body begins with a polite but direct opening, followed by the purpose of the memo, using a clear structure with blank lines between each paragraph. This approach aids in making the communication effective and professionally appropriate.