The Bluebook: A Uniform System of Citation 12th Edition in Spiral Bound format is a comprehensive textbook authored by the Columbia Law Review, published by the Harvard Law Review Association. This advanced-level textbook focuses on the subject area of Law and Education, offering a detailed system of citation guidance. With a weight of 27.3 Oz, this new edition is a valuable resource for adult education and further educational levels, providing a uniform system of citation for legal professionals and students in the United States.