Dead Man Walking is a book about a man named Matthew Poncelet who was convicted of murder and put on death row. He then goes through the legal process of trying to escape the death penalty. The book is about his struggles and his journey from prison to death row. It is also about his relationship with his lawyer and the people around him as he faces the possibility of execution. It is an important story that gives readers a close look at the criminal justice system and how it affects people.