Enclosure on letter format refers to a common practice of including additional documents or materials along with a formal letter. This is done to provide supporting information, provide references, or fulfill legal requirements. These enclosures can vary depending on the purpose of the letter and the specific requirements of the recipient. There are different types of enclosure formats commonly used in official correspondence: 1. Advertisement enclosure: This type of enclosure is often used when sending promotional materials or brochures along with a sales or marketing letter. By including an advertisement enclosure, the recipient gets a visual representation of the products or services being offered, enhancing the overall communication impact. 2. Resume/CV enclosure: When applying for a job, candidates often include their resumes or curriculum vitae as enclosures to provide a comprehensive overview of their qualifications, skills, and experience. This allows potential employers to review the candidate's credentials easily. 3. Supporting documents enclosure: In formal letters, especially in legal or administrative matters, enclosures can consist of supporting documents such as certificates, contracts, licenses, permits, or any other relevant paperwork. These enclosures serve as evidence or clarification to strengthen the letter's content or to fulfill the recipient's request. 4. Research enclosure: Enclosures may also include research papers, articles, studies, or reports relevant to the topic discussed in the letter. This helps provide additional, credible information that supports the letter's argument or request, especially in academic or professional settings. 5. Financial enclosure: Enclosing financial documents like bank statements, invoices, receipts, or other financial proofs can be essential in financial or business correspondences. This helps to provide transparency, proof of payment, or to support any monetary requests put forth in the letter. Including an enclosure in the letter format is a way of ensuring that all necessary or additional materials are delivered alongside the letter, saving time and avoiding confusion for both the sender and the recipient. Additionally, clearly indicating the presence of enclosures in the letter's content and using appropriate keywords such as "enclosed," "attached," or "as per request" ensures that the recipient understands the importance of reviewing the enclosed documents for a complete understanding of the subject.