This document discusses mail merge, a tool that allows producing multiple customized documents from a main document and a data source. It introduces the two components of a mail merge: the form document and the data file. It then outlines the six steps to performing a mail merge using Microsoft Word: 1) choosing the document type, 2) selecting the form document, 3) selecting recipients from an existing list or typing a new one, 4) writing the document and adding placeholders for recipient data, 5) previewing the merged documents, and 6) printing the final documents.