Who Knew
In this 2025 memoir, Barry Diller looks back on a career that helped shape modern American entertainment and media. Starting in the mailroom at the William Morris Agency, he rose to run Paramount Pictures, then launched the Fox network as a fourth broadcast competitor, and later built a sprawling internet business spanning brands from Ticketmaster to Expedia and Match. Diller writes with bluntness about the deals, fights, and instincts that drove him, and about the executives and stars he worked alongside during a transformative era. The book is also striking for its personal candor: Diller writes openly about his sexuality and his long relationship and marriage with designer Diane von Furstenberg. Part business history and part self-examination, the memoir traces how a restless, demanding outsider kept reinventing himself across film, television, and technology.
What you might want to know about Who Knew
The questions readers send us most often, answered without spoilers.
The media mogul behind Paramount, Fox, and a string of internet companies tells his own story, including a candid reckoning with his private life.
Diller ran Paramount Pictures, launched the Fox broadcast network, and built internet businesses including brands like Expedia, Ticketmaster, and Match through IAC.
Yes. Alongside business history, Diller writes candidly about his sexuality and his long relationship and marriage with the designer Diane von Furstenberg.
Who Knew was written by Barry Diller, published in 2024 by Simon & Schuster.
Who Knew is 336 pages in standard print editions, though page counts vary slightly between hardcover, paperback, and large-print formats.
At an average reading pace of about 250 words per minute, Who Knew takes most readers 5 to 7 hours to finish.
Who Knew is available in hardcover, paperback, ebook, and audiobook formats from Amazon, Bookshop.org, ThriftBooks, and most major bookstores.