An introduction letter
or letter of introduction
is a letter that is used to introduce one party to a second party. There are three main types of introduction letters; business-to business, business-to-customer, and personal introduction letters.
An introduction letter should not be written as a standard business letter
or personal letter and should not normally exceed one page. In some cases, introduction letters can include attachments that relate letters such as: brochures, pamphlets, career briefs, biographies, etc.
Introduction letters should not be confused with cover letters that are used to transmit resumes and curriculum vitae and various business documents.