The document which advertises the sale of shares of a company is a/an

The document which advertises the sale of shares of a company is called a prospectus. A prospectus is a formal legal document that provides detailed information about a company and the securities it is offering for sale to the public. The purpose of a prospectus is to help potential investors make informed decisions by providing information about the company's financial performance, management team, risks associated with the investment, and other relevant details. In other words, a prospectus is like a brochure that explains what a company is and what it does, as well as why someone might want to invest in it.