Mark Haertzen’s Memoir, Stay Thirsty, Reveals The Raw Reality Of Entrepreneurship

On The Table Read Magazine, “the best arts and entertainment magazine UK”, in Stay Thirsty, award-winning serial entrepreneur Mark Haertzen shares a raw, 60-year journey from a garage-built prototype to stadium concessions at the Super Bowl, offering unfiltered lessons on the true resilience required to build a global business.

The business shelves of modern bookstores are crowded with the sleek, polished biographies of billionaire CEOs. While these stories offer plenty of aspiration, they often edit out the sleepless nights, the near-misses, and the exhausting reality of the daily grind.

A refreshing new release from Old Stone Press disrupts this trend. Stay Thirsty: A Serial Entrepreneur’s Tale of Success & Failure by Mark Haertzen offers a candid, unfiltered look at a 60-year entrepreneurial journey. A recipient of the 2026 Independent Press Award in the Autobiography category, the memoir serves as a practical blueprint for real-world business building, co-written with award-winning freelance writer Mike E. Brown.

The Birth of a Global Standard

The cornerstone of Haertzen’s multi-decade career is Rocket Man, Inc., a venture that perfectly illustrates the unpredictability of scaling a business. What began as a simple prototype built by hand inside a residential garage eventually evolved into a global manufacturing powerhouse. Over a 31-year lifecycle, the company expanded its footprint to export beverage dispensing equipment to 65 countries.

Rather than sticking solely to manufacturing, Haertzen executed a massive strategic pivot that shifted the company into the high-stakes world of stadium foodservice concessions. Rocket Man deployed walking vendors to hawk beverages across 75 major venues spanning the United States. This operational shift landed his team on some of the grandest stages in sports and entertainment, including the Super Bowl, the World Series, the NCAA Final Four, the Kentucky Derby, the Daytona 500, and major rock concerts like the Rolling Stones.

Beyond the Highlights: Embracing the Messy Middle

What separates this memoir from standard corporate success stories is Haertzen’s willingness to dissect his failures with the same precision as his victories. Over his lifetime, the University of Kentucky graduate launched more than 50 distinct ventures, inventions, and concepts. His portfolio cut across numerous industries, ranging from a drive-thru coffee shop, a real estate brokerage, and a residential subdivision to a line of cocktail mixes, a board game, and a chain of self-storage facilities.

Naturally, not every venture was a home run. Haertzen details the gut-wrenching setbacks and personal sacrifices that accompanied the losses. The book tracks his personal and professional evolution, showing how a young, instinct-driven visionary transformed over six decades into a methodical, data-driven leader.

Early industry reviews have praised the book’s directness:

• Kirkus Reviews lauded its ability to capture both the thrill and the inevitable toll of the entrepreneurial lifestyle.
• Foreword Reviews highlighted its thoughtful take on resilience and long-term business building.
• Printed Word Reviews noted the clarity of its practical insights, deeming it an essential read for active founders.

“Rocket Wisdom” for Modern Founders

Throughout the narrative, Haertzen introduces readers to what he calls “Rocket Wisdom”—a collection of battle-tested takeaways forged in the trenches of daily business operations. A primary theme of this philosophy is that nothing of substance sprouts from the ground fully grown, emphasizing that true scale requires patience, incremental progress, and relentless persistence.

Crucially, the book dispels the myth of the solo genius. Haertzen continuously highlights the vital role that mentors, business partners, family members, and friends played in his endurance, framing entrepreneurship as a definitive team sport.

Instead of relying on dry academic theories, the memoir reads like a conversation with a seasoned mentor. It is designed to reassure active business owners that uncertainty and constant pivoting are normal parts of the process, while inspiring the next generation of innovators to take the plunge and begin writing their own chapters.

Find more from Mark Haertzen now:

Apple Book: https://apple.co/3SNPOic

Kindle: https://amzn.to/4y0oEVD

Paperback: https://amzn.to/44L0f8V

Publisher: https://oldstonepress.com/