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Without a Doubt

How to Go from Underrated to Unbeatable

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About The Book

“An inspiring blueprint to overcome challenges—and thrive” (Arianna Huffington, Founder and CEO of Thrive Global), on how to turn other’s and your own doubt into rocket fuel to achieve your dreams, from entrepreneur, CEO, and healthcare investor Surbhi Sarna.

The very qualities that make you an outlier are, in fact, your strengths. Or so Surbhi Sarna discovered after a teenage cancer scare inspired her to reimagine healthcare, founding a medical start-up to detect early ovarian cancer. In Without a Doubt, she shares how she proved the doubters wrong. As a young, brown woman without a medical degree or Ivy-league or Silicon Valley contacts—and who had felt different throughout her life—she was often overlooked and underrated.

Undeterred, Sarna used the naysayers as ammunition to help her surpass expectations—and achieve her dreams. Without a Doubt is her powerful story of becoming a leader without an MBA, networking without a network, and raising funds when she didn't know a single venture capitalist, teaching you how to do the same. Sarna led an all-star team to develop a life-saving medical device, sold her business for $275 million, and became a partner at Y Combinator, one of the most successful venture firms in the world. Using her own experience, she shows you how to face setbacks, not let impossible standards get in the way, lead empathetically, empower others to think differently, and how to convince the right people to help you accomplish your goals.

Without a Doubt reveals that your power lies in recognizing the qualities that make you different and leveraging them to pursue your dreams.

About The Author

Photograph by Michele Beckwith

Surbhi Sarna is an entrepreneur, partner at Y Combinator, advocate for innovation in healthcare, and investor. She has worked as an engineer before becoming CEO and founder of nVision Medical. nVision developed a catheter-based device for early detection of ovarian cancer and after obtaining FDA clearance, was purchased by Boston Scientific. Sarna also sits on both nonprofit and for-profit company boards, has been featured in publications such as Bloomberg, Forbes, Entrepreneur magazine, and Inc., and has received numerous awards, including being named on the Forbes 30 under 30 list and the Inc. Female Founder 100 list. She lives in the San Francisco Bay area with her husband and two children.

Product Details

  • Publisher: Simon & Schuster (March 7, 2023)
  • Length: 224 pages
  • ISBN13: 9781982147907

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Raves and Reviews

“[An] inspiring debut. . . Budding entrepreneurs will find this a motivating, accessible entry.” –PUBLISHERS WEEKLY

“Perhaps as a result of the ways in which she was underestimated, Sarna’s approach to entrepreneurship, which she articulates through warm and humorous advice embedded in her life story, is profoundly empathetic, both for her co-workers and community and for herself. [Without a Doubt is] a wise, practical, and compassionate guide to startup success from a determined woman.” –KIRKUS REVIEWS *starred review*

“Surbhi Sarna is a success story, but this is no victory lap. In Without a Doubt, she shares the challenges faced by underrated entrepreneurs, but more importantly, she gives a plan to overcome them — and thrive.” — Arianna Huffington, Founder & CEO, Thrive Global

“When it comes to doling out wisdom for entrepreneurs, Without a Doubt delivers.” —Andy Fang, founder of DoorDash

“Without a Doubt is an object lesson in resilience. Surbhi Sarna shows us how outsiders can win, if they're sufficiently resourceful and determined.” —Jessica Livingston, founder of Y Combinator and author of Founders at Work

“Entrepreneurs can change the world. Surbhi Sarna has done just that and in this authentic telling of her story, she shows how you can too. The book is inspiring.” —Tim Draper, venture capitalist and founder of Draper Associates

“Without a Doubt is a story about a girl who judo flips on her devastation and heartbreak. It is a fresh perspective and guide on company building and activism that will inspire others to help make a better world.” —Tracy Young, co-founder of Plangrid and CEO of TigerEye

“Whether people or overvaluing or undervaluing you, it doesn’t matter. Surbhi Sarna shows you how to go long on yourself and get things done.” —Michael Seibel, partner at Y Combinator

“Surbhi Sarna’s drive to innovate and her reluctance to quit even in the toughest of circumstances will inspire readers to chase solutions that will improve the health of the world.” —Michael Mahoney, CEO of Boston Scientific

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