Robert Kolker is a two-time New York Times best-selling nonfiction author whose 2020 release, "Hidden Valley Road," was a selection of Oprah's Book Club, an instant #1 Times best-seller, and featured in President Barack Obama's list of favorite books of 2020. The true story of a mid-century American family that became science's great hope for understanding the roots and nature of schizophrenia, "Hidden Valley Road" was published in 19 countries and translated into 16 languages. Kolker has appeared as a speaker at local NAMI chapters, psychiatry conferences, mental-health service providers, medical schools, and grassroots mental-health organizations. His new book "The Vanishing Family," will be published by Doubleday in September 2026.