What has the author Rudolph W Giuliani written?

Rudolph W. Giuliani has not published any books under his own name. He has, however, been the subject of several biographies and contributed to a few books on law and politics.

Here are some examples:

* Biographies:

* "Giuliani: The Rise and Fall of America's Mayor" by Ken Kurson

* "Rudy: An Investigative Biography of Rudolph Giuliani" by Wayne Barrett

* "Giuliani: The Unauthorized Biography" by David Schipper

* Books featuring contributions:

* "Terrorism and Law Enforcement" (edited by James J. Fyfe, in which Giuliani has an essay)

* "Law and the City: The Municipal Corporation in American Life" (in which Giuliani contributes a chapter on the history of New York City's legal system)

It's worth noting that while Giuliani has not authored any books under his own name, he has given numerous speeches and interviews, and his views on various topics are widely documented in media reports and publications.