Mark Olshaker is an Emmy Award–winning documentary filmmaker and author of thirteen nonfiction books and five novels, including Einstein’s Brain and The Edge. His books with former FBI Special Agent and criminal profiling pioneer John Douglas, beginning with Mindhunter and most recently When a Killer Calls, have sold millions of copies and have been translated into many languages. Mindhunter was recently adapted by David Fincher into a critically acclaimed and award-winning dramatic series on Netflix. Olshaker and his wife, Carolyn, an attorney, live in the Washington, DC, area.