- To Punish and Protect (1999)
In this true-crime book, Pirro explores the life of Susan Smith, who drowned her young sons in 1994. The book examines Smith's motivations, the prosecution's case, and the media coverage of the trial.
- He Killed Them All: Robert Durst and My Quest for Justice (2019)
This book delves into the case of Robert Durst, a wealthy real estate heir who was convicted of murdering three people. Pirro, who covered the trial as a legal analyst, provides an insider's perspective on the investigation, trial, and verdict.
- Liars, Leakers, and Liberals (2020)
In this political book, Pirro criticizes the media, the Democratic Party, and the "deep state" for their perceived hostility toward President Donald Trump. She argues that these entities are working to undermine the president and his supporters.
- We Hold These Truths (2022)
This book focuses on the history and significance of the U.S. Constitution, particularly in the context of modern political debates. Pirro argues for a return to the original intent of the Founding Fathers and criticizes those she sees as undermining the Constitution's principles.