Anthony Gray’s Freedom of Speech in the Western World undertakes the herculean task of providing a deeply grounded historical, theoretical, legal and cultural explanation of free speech protection and regulation across the common law world. The result is an important resource for those trying to understand the development of speech regulation across the countries studied in the book, and more broadly. Gray’s critique of the different approaches to permissible regulation is a well-timed contribution to contemporary domestic and international debates about the future of that regulation.