Adrian Zackheim

Founder, President, and Publisher

Adrian Zackheim joined Penguin Group in September 2001 as Founder and Publisher of Portfolio. He then took on the additional challenge of starting Sentinel in April 2003. In 2018, he announced the addition of another new imprint to the group: The Optimism Press, in collaboration with Simon Sinek.

Previously, he was the Associate Publisher and Editor-in-Chief of HarperInformation, a division of HarperCollins that included HarperBusiness. His editorial career has also included positions at William Morrow, Doubleday, and St. Martin’s Press, and his first job was as School and Library Publicity Assistant at G.P. Putnam’s Sons, which was then a privately held small publishing company. He later moved to Putnam’s Editorial department under the leadership of Editor-in-Chief Phyllis Grann.

Among the many bestselling books he edited and published before joining Penguin Group were Good to Great by Jim Collins; Die Broke by Stephen Pollan and Mark Levine; The Dilbert Principle by Scott Adams; The HP Way by David Packard; and Swim with the Sharks without being Eaten Alive by Harvey Mackay.

Tara Gilbride

Vice President, Director of Marketing & Publicity

Tara Gilbride has over 20 years of experience promoting non-fiction authors and their books. As VP, Publicity Director, Associate Director of Marketing, she is in charge of helping authors find the largest readership possible through customized media and event outreach, creative online marketing campaigns and by generating innovative promotions that ignite preorder campaigns and reinvigorate backlist. Recent campaigns she has worked on include the bestsellers MEASURE WHAT MATTERS by John Doerr, TOGETHER IS BETTER by Simon Sinek, and OUT OF THE MAZE by Spencer Johnson. Before joining Portfolio she spent over a decade at the Crown Publishing Group, where she oversaw marketing and publicity for Crown Business in addition to working with authors across categories, including bestselling authors T. Boone Pickens, AG Lafley, Meg Whitman, Eric Ries, Chip and Dan Heath, Reid Hoffman, Deepak Chopra, Steve Forbes, Cesar Milan, and David Sanger, and has coordinated marketing and media strategies with such organizations as P&G, LinkedIn, McKinsey, IDEO, Wharton, WIRED, Wall Street Journal and Forbes Magazine. She lives in CT with her husband and two children.

Niki Papadopoulos

Editorial Director

Niki Papadopoulos joined Portfolio in 2011 as a Senior Editor, and is a passionate advocate for business as a tool for empowerment, innovation, and social good. In addition to overseeing general acquisition strategy for the Portfolio imprint, she acquires and edits a wide range of commercial nonfiction for ambitious people, from idea-driven business books to narrative, biography, memoir, investigative journalism, and self-help. In the last decade she has published twelve New York Times bestsellers and seventeen Wall Street Journal bestsellers, including This Is Marketing by Seth Godin; The Obstacle Is the Way by Ryan Holiday; The Four by Scott Galloway; Captivate by Vanessa Van Edwards; Thinking in Bets by Annie Duke; The Death of Money by James Rickards; Hooked by Nir Eyal; and American Kingpin by Nick Bilton.She tweets about grammar, dogs, and what happens to authors who don’t turn their manuscripts in on time at @niki_pop.