A Full Service Agency

The Cowles Agency represents authors who are leading experts in their fields.

We partner with our authors to bring focus, style, and forward-thinking to every book project to ensure each and every one is published at the highest level. 


The Cowles Agency is dedicated to helping authors find a clear mission, relevance, and substantial audience for their book projects.

Our interests include memoir, narrative, health, design, photography, business, and culinary.

At every step of the process, we act as both a strategic and creative resource to refine concepts and amplify key book ideas.  We often bring in talented collaborators, artists, writers and photographers to support our projects when necessary. We work with authors over the course of their careers to extend their brands, often by selling ancillary rights directly including foreign, licensing, sponsorships, film and new commercial projects.


Prior to becoming an independent agent, Katherine worked for twelve years at Doubleday and Simon & Schuster, where she served as Associate Publisher and Vice President responsible for business affairs, production, and nonfiction acquisitions. She is currently a member of AAR and the Authors Guild.




Bryant Austin

Catherine Bailey

Andy Baraghani

Taylor Boetticher

Jon Bonne

Carrie Brown

Chris Burkard

Courtney Burns

Gabriela Camara

Henry Carroll

Baylor Chapman

Andrew Chau

Bin Chen

Josef Centeno

Mark Cushing

Renee Erickson

Dr Susan Fisher

Camille Fourmont

Helene Henderson

House Industries

Dr George King

Jessica Koslow

Lauri Krantz

Jeff Krasno

Chris Kronner

Travis Lett

Peter Liem

Kermit Lynch

The Manscapers

Margarita Manzke

Rick Martinez

The Mast Brothers

Ignacio Mattos

Dr Emeran Mayer

Amy Merrick

Serena Mitnik-Miller

Toponia Miller

Sam Mogannam

Carla Lalli Music

Ivan Orkin

Dr. Rafael Pelayo

Paulson Fontaine Press

Francis Percival

Bronwen Percival

Robin Petravic

Charles Phan

Emily Post Institute

Elisabeth Prueitt

Christian Puglisi

Putnam + Putnam

Chad Robertson

Sharon Robinson

Besha Rodell

Julia Sherman

Sheldon Simeon

Garrett Snyder

Justin Smillie

Mason St. Peter

David Tanis

Erica Tanov

Andrew Tarlow

Thaddeus Vogler

Eric Werner

Kris Yenbamroong

Chris Ying

Maria Zizka