Notices are brief, public announcements designed to convey essential information to a wide audience, typically displayed on notice boards in schools, offices, or public venues. Their format is standardized to ensure immediate comprehension. A notice must prominently feature the name of the issuing authority or organization at the top, followed by the capitalized and bolded word "NOTICE" centered below it. The date is placed on the left side. A clear, concise, and catchy headline or subject line is crucial for immediately conveying the notice's purpose. The body of the notice must be brief, factual, and to the point, covering the "who, what, when, where, why, and how" of the information being conveyed (e.g., details of an event, a change in schedule, or a specific instruction). It concludes with the signature, name, and designation of the issuing authority. The key is to be unambiguous and provide all necessary information without extraneous details.

Circulars are similar to notices but are usually distributed directly to a specific group of people within an organization, such as all employees, parents, or students. They are used to disseminate instructions, policy changes, important announcements, or general information that requires the attention of a defined group. While they share the conciseness and factual nature of notices, circulars might offer slightly more detail depending on the complexity of the information being shared, often covering detailed procedures or guidelines. They typically follow a similar header format to notices but are distributed individually rather than posted publicly.

Professional E-mails represent a significant shift towards digital communication, combining the formality of a letter with the immediacy of electronic exchange. Effective professional email etiquette is paramount in today's world. A clear and informative subject line is critical; it should accurately reflect the email's content to ensure the recipient understands its purpose at a glance. The salutation should be formal (e.g., "Dear Mr./Ms. [Surname]," "Dear [Title]"). The body of the email must be concise, well-structured, and to the point. Short paragraphs are preferred, and bullet points or numbered lists can enhance readability for complex information. The language should be formal, precise, and free of slang, emojis, or excessive punctuation. The email should conclude with a formal complimentary close (e.g., "Regards," "Sincerely"), followed by the sender's full name, designation, and contact information. It is crucial to proofread emails for grammatical errors and typos before sending, and to use a professional email address. Professional emails are used for inquiries, scheduling meetings, sharing documents, providing updates, and various other business and academic communications.