Sentinel

Penguin: Because Reading Matters

Taylor Williams, Publicity Associate

Taylor joined Portfolio as a publicity assistant in June 2022. She has a passion for working on books written to improve both our professional and personal lives, amplify marginalized and underrepresented voices, and offer new ways to see the world. Since working at Portfolio, she’s worked on New York Times Bestsellers including Build the Life You Want by Arthur…

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Megan Wenerstrom, Assistant Editor

Megan joined Sentinel in 2022, drawn to big ideas that push boundaries and inspire new perspectives. Her authors span a diverse range of thinkers—entrepreneurs, philosophers, environmentalists, tech experts, activists, and even cowboys —bringing fresh insights to readers. Before publishing, Megan’s career began as a public school teacher, where she cultivated her talent for sparking curiosity and meaningful dialogue.

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Margot Stamas, Associate Publisher and Director of Publicity and Marketing

Margot Stamas joined Portfolio in 2012. As the Associate Publisher and Director of Publicity and Marketing, Margot is responsible for overseeing the promotional strategy across the Portfolio, Sentinel, and Optimism lists. She has led bestselling campaigns for Sophia Amoruso’s #GIRLBOSS, Marie Forleo’s Everything Is Figureoutable, Cal Newport’s Digital Minimalism, Emily Chang’s Brotopia, Gregory Zuckerman’s The Man Who Solved the Market, and more.

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Sentinel

Our mission is to provide a home for independent-minded thinkers and storytellers who challenge mainstream opinion, whether by looking to the past or reimagining the future.

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