A researcher is writing a letter to include after the title page of a research report. The purpose of this letter is to release or deliver the report to the recipient rather than provide detailed information of the research findings. This letter is called the Letter of Transmittal
Step-by-step explanation:
A letter of transmittal is a letter that is used as a cover note for a larger and more important document. The letter of transmittal provides the recipient the context in which to place the document. In other words, this letter tells the receiver what has been received rather than the information that is in the attached documents.
These letters are used with reports that carry important information like financial information or information related to market research.The letter of transmittal is a brief letter that also provides as a record of what has been sent to the receiver.