Every lawyer knows about The Bluebook, the gold standard in citation formats from the Harvard and Columbia Law Reviews. However, an NYU professor and a group of law students created a new citation manual called The Indigo Book. According to a recent Press Release, The Indigo Book was released in beta version in 2016, and it is free and "open" with "No Rights Reserved." Compared to The Bluebook, "The Indigo Book was created with a more flexible, arguably practical, citation system in mind." Check it out for yourself..