What is the author's style in Mindhunter: Inside the FBI's Elite Serial Crime Unit by John E. Douglas?

John Douglas is the co-author of "Mindhunter" who bases the book's content on his twenty-five year career with the FBI's Investigative Support Unit. Douglas organizes and manages the unit from its beginning in 1980 to his retirement in 1995. Mindhunter is the story of his life and experiences profiling criminals. Mark Olshaker is co-author and brings his experiences as a novelist and filmmaker who produces the PBS Nova program "Mind of a Serial Killer." The combined team efforts of Douglas and Olshaker produce four novels in addition to Mindhunter. In John Douglas' own words he presents the real story of the evil that the dragon represents as he confronts it throughout his career.

He writes this book to tell his story of twenty-five years in the pursuit of criminal justice. He seems to be a good man albeit obsessed with his task, to the apparent loss of his happy home life. The topic makes the book not all that pleasant to read despite its value. Hard truths are presented in an effort to face the experience of man at its most despicable level. Truths that Douglas presents make one shudder but admire the FBI's persistent commitment exhibited in the serial crime unit. Mindhunter is a valuable book, yet painful to read because of its brutal honesty.