What is the author's style in Without Conscience: The Disturbing World of the Psychopaths Among Us by Robert D. Hare?

The book is told through the perspective of Dr. Robert D Hare, a psychologist who has studied psychopathy for over twenty years. He uses a first person narrative to speak about his own personal experiences with psychopaths and his research. Dr. Hare also includes many antidotes from friends, patients, and people who have written to him.