This document summarizes the key rules for legal citations from The Bluebook: A Uniform System of Citation (20th ed. 2015). It outlines the basic structure and formatting for legal citations of cases, statutes, books, periodicals, and online sources. The document also describes the use of signals, abbreviations, quotation marks, and short form citations in legal documents and research papers. Major topics covered include case name formatting, use of legal databases, capitalization rules, and how to cite various primary and secondary source materials.