The document provides information on how to use Mendeley, a reference management tool. It discusses how to create a Mendeley library by adding PDFs, importing references from other tools, and looking up document details. It also describes how to manage documents by merging duplicates, marking items read/unread, searching, annotating PDFs, and tagging/editing multiple documents. Finally, it covers citing references in Word and other editors, sharing documents with groups, and getting support.