Peter W. Singer and Allan Friedman’s Cybersecurity and Cyberwar: What Everyone Needs to Know, is a great place to start. Although already a bit dated, the National Academies’ report At the Nexus of Cybersecurity and Public Policy explains why cybersecurity is important, why it is a wicked problem, and the public policy issues in cybersecurity. And it’s free. A more recent, advanced, and law and policy focused self-study can be pursued by working through UT-Austin Professor Bobby Chesney’s cybersecurity ecasebook.
In September 2024, Chris Hoofnagle and Golden Richard’s Cybersecurity in Context will be available from Wiley.