"Registering the Human Terrain," a term now in vogue to describe the rendering of socio-cultural information to a map is "mapping the human terrain," which is also an intelligence topic of increasing salience. However, this book is NOT about mapping the human terrain, but about registering the human terrain: tying a "person," an individual, a group, or a non-natural person such as an organization, to a geographical place through property records. This book manifests how to answer the "who" question with the same precision the U.S. Intelligence Community answers the "where'' question.