This week, James X. Dempsey, senior policy advisor to the Program on Geopolitics, Technology and Governance, released his new book Cybersecurity Law Fundamentals, a guide aimed at giving a coherent summary of this incoherent body of law. The book is both a primer and a reference volume. It serves the cybersecurity practitioner looking for a quick refresher or a citation, but also guides generalists and newcomers to the field: the general counsel who needs a basic understanding of the regulatory requirements and legal risk that a company faces; the policymaker interested in understanding the gaps in the law and filling them; the attorney seeking a career transition to a rapidly growing practice area.