Ronald J. Krotoszynski, Jr teaches and writes about constitutional law, administrative law, First Amendment, and comparative constitutional law, with a particular focus on the First Amendment and freedom of expression. He is the author of three books, including Privacy Revisited (2016), Reclaiming the Petition Clause (2012), and The First Amendment in Cross-Cultural Perspective (2006). He has published works in leading law reviews and is the co-author of two casebooks, First Amendment: Cases and Theory (3rd edition, 2017) and Administrative Law (4th edition, 2017).