What You Do Is Who You Are: How to Create Your Business Culture

Ben Horowitz, a leading venture capitalist, modern management expert, and New York Times bestselling author, combines lessons both from history and from modern organizational practice with practical and often surprising advice to help executives build cultures that can weather both good and bad times.

Ben Horowitz has long been fascinated by history, and particularly by how people behave differently than you’d expect. The time and circumstances in which they were raised often shapes them—yet a few leaders have managed to shape their times. In What You Do Is Who You Are, he turns his attention to a question crucial to every organization: how do you create and sustain the company culture you want?

To Horowitz, culture is how a company makes decisions. It is the set of assumptions employees use to resolve everyday problems: should I stay at the Red Roof Inn, or the Four Seasons? Should we discuss the color of this product for five minutes or thirty hours? If culture is not purposeful, it will be an accident or a mistake.

What You Do Is Who You Are is an essential business guide that explains how to make your culture purposeful by spotlighting four models of leadership and culture-building—the leader of the only successful slave revolt, Haiti’s Toussaint Louverture; the Samurai, who ruled Japan for seven hundred years and shaped modern Japanese culture; Genghis Khan, who built the world’s largest empire; and Shaka Senghor, a man convicted of murder who ran the most formidable prison gang in the yard and ultimately transformed prison culture.

Horowitz connects these leadership examples to modern case-studies, including how Louverture’s cultural techniques were applied (or should have been) by Reed Hastings at Netflix, Travis Kalanick at Uber, and Hillary Clinton, and how Genghis Khan’s vision of cultural inclusiveness has parallels in the work of Don Thompson, the first African-American CEO of McDonalds, and of Maggie Wilderotter, the CEO who led Frontier Communications. Horowitz then offers guidance to help any company understand its own strategy and build a successful culture.

What You Do Is Who You Are is a journey through culture, from ancient to modern. Along the way, it answers a question fundamental to any organization: who are we? How do people talk about us when we’re not around? How do we treat our customers? Are we there for people in a pinch? Can we be trusted?

Who you are is not the values you list on the wall. It’s not what you say in company-wide meeting. It’s not your marketing campaign. It’s not even what you believe. Who you are is what you do. This book aims to help you do the things you need to become the kind of leader you want to be—and others want to follow.

What You Do Is Who You Are provides a clear framework for building a purposeful and effective organizational culture:

  • Leadership Case Studies: Learn from the surprising successes of historical figures you’d never expect, from Haiti’s Toussaint Louverture to the world-conquering Genghis Khan.
  • Actionable Culture-Building: Move beyond wall values and mission statements to implement the daily actions and shocking rules that truly define who you are as an organization.
  • A New Definition of Culture: Understand Horowitz’s core thesis that culture is how your company makes decisions when you’re not in the room, and learn precisely how to shape those choices.
  • Modern Management Principles: Connect timeless lessons to the challenges faced by today’s top executives, with relevant examples from Netflix, Uber, and other Silicon Valley giants.

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Published Oct 29, 2019

288 pages

Average rating: 6.33

3 RATINGS

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Community Reviews

Glenn D Sandberg
Jan 26, 2026
Reading this book really changed how I see my work. The book made me think about values, not just results. It also showed me the best way to hire a reliable virtual assistant. My experience with stellarstaff.com proved that the right people shape culture, even in small teams.
jen.reads
Jun 03, 2021
7/10 stars
Ben Horowitz writes about how great leaders built their culture - he focuses on interesting characters, not only your typically run of the mill Silicon Valley CEOs. The casual voice of the book, and hip hop lyric quotes opening up each chapter were a nice touch. The concepts are laid out clearly and I wish there was more actionable advice in the book. I also think that I read this a bit early in my career - I don’t have anyone working for me (yet). Made me think through how the Seniors at the companies I worked for crafted their culture.

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