"He was the most important scholar of privacy since Louis Brandeis."--Jeffrey Rosen

In defining privacy as "the claim of individuals...to determine for themselves when, how and to what extent information about them is communicated," Alan Westin's 1967 classic Privacy and Freedom laid the philosophical groundwork for the current debates about technology and personal freedom, and is considered a foundational text in the field of privacy law.

By arguing that citizens retained control over how their personal data was used, Westin redefined privacy as an individual freedom,...