Certain treatises, called hornbooks, are used by American law students as supplements to casebooks. Hawkins co-authored two casebooks on tort law. The case has been cited in American law school casebooks and law journals. Mosk authored many significant opinions, some of which have been included in law school casebooks. Descriptive relationships also includes annotated editions, casebooks, commentaries, and critiques of an existing work. Students in American law schools often use hornbooks as supplements to casebooks. He has also written several notable casebooks used by U.S. law students. O'Connell's 77 major publications (books, articles, and chapters) include 12 books and casebooks. This is the first of the Joe Pitt Casebooks. It is the first book in the "Cthulhu Casebooks" trilogy. His "Casebooks" are the most famous of these resources. Dary Matera (born 1975) is an author who specializes in real-life casebooks. The game was inspired by Forman's casebooks.