Cover sheets are used to provide a brief summary and important details about a document. They are typically placed as the first page or attached as a separate page at the beginning of a document. Cover sheets serve as an introduction to the document, often containing information such as the title, author, date, and purpose of the document. They can also include contact information, reference numbers or codes, instructions, or any other relevant information that helps identify the document or provides context to the reader. Cover sheets are commonly used in various settings, such as offices, schools, government agencies, and healthcare facilities, to ensure that important documents are properly identified and organized.