For law students, learning about the world of legal citations is key. For many years, the standard reference work on legal citation was a manual known as "The Bluebook". This work has been revised numerous times over the years, and this online version appeared in May 2007. It is offered here as a public service, by the Legal Information Institute (LII) at Cornell University's Law School, and it will be helpful for those looking for a quick online reference work. It is worth noting that this particular introduction is focused on the forms of citation used in processional practice rather that those used in journal publication. Visitors can search through the contents at their leisure, and they can also jump around to sections that cover the use of underlining, italics, and citation principles.