An inquiry letter is a formal written request for information or clarification about a specific topic. It is often used in business, education, or personal contexts to seek details about products, services, or opportunities. The letter typically includes a clear subject line, a polite greeting, and a concise explanation of the information being requested. These letters should be well-structured and to the point, ensuring that the recipient understands the purpose of the inquiry. Common uses include asking about job openings, requesting product specifications, or seeking clarification on policies. Proper etiquette and professionalism are essential in crafting an effective inquiry letter.