“Jonas is an exceptional thinker and a doer.
I’d hire him again in a second.”

— Dan Heath, New York Times bestselling author of
Made to Stick, Decisive and The Power of Moments

“When it comes to marketing and strategy, there’s no
one better. Jonas knows how to move hearts and minds. He’s a human dot-connector of the highest sorts.”

— David Wilk, Founding Partner,
of Award-winning Four Day Weekend Comedy
Coauthor of National Bestseller Happy Accidents
Entrepreneur in Residence, TCU Neeley School of Business

“Jonas helped me crystallize so many things — about my book and life in general — I appreciate his kind and creative nudging.”

— Tasha Eurich, New York Times bestselling author of
Insight and Bankable Leadership

“Jonas is remarkably insightful,
deeply curious and wildly talented.”

— Raj Raghunathan, Professor of Marketing, UT McCombs School of Business
author of If You’re So Smart, Why Aren’t You Happy

“Special thanks to editor Jonas Koffler who quarterbacked numerous projects related to this book, coordinated the efforts of many… and also offered detailed editorial feedback throughout. Jonas, you rock!”

— Gary Keller, Executive Chairman, co-founder of KWX and Keller Williams Realty Inc.,
#1 Wall Street Journal & New York Times bestselling coauthor with Jay Papasan of
The One Thing, SHIFT, and The Millionaire Real Estate book series.

“To Jonas Koffler for being the blissful wizard to
my dark pragmatist. May you have more naps
while you hustle and flow.”

— Sunni Brown, Principal at Sunni Brown Ink, TED speaker, and
bestselling author of The Doodle Revolution and Gamestorming.

“It’s seldom you get to work with a person of such imagination, integrity, and energy. Jonas is the type of person who asks the tough questions, creates powerful, clever solutions and, throughout the process, brings out the best in those with whom he works.”

— Eric Bricker
Award-winning director of Visual Acoustics and Alumination

“This guy is a big thinker and a problem-solver.
He knows how to move the needle creatively.
Nobody does brainstorming better. ”

— Neil Patel
Cofounder of Crazy Egg, KISSMetrics and
New York Times bestselling coauthor of Hustle

“… I simply would not have endured without my friend and book consigliere, Jonas Koffler. This book would not have been completed without him. Period.”

- Brant Cooper
New York Times bestselling author of The Lean Entrepreneur and Disruption Proof

“First, Jonas, you have been a true ambassador of
Global Class, helping us in so many ways, from book proposal development to securing a deal with our publisher to being there… the whole way to answer an endless amount of questions … thank you!“

- Aaron McDaniel, Haas School of Business, & Klaus Wehage, CEO of 10X Innovation Lab
Wall Street Journal bestselling coauthors of Global Class: How the World’s Fastest Growing Companies Scale Globally by Focusing Locally

“Love is the killer app, Hustle is its operating system. Read Jonas’s book and drive exponential success, starting today!”

- Tim Sanders
New York Times bestselling author of Love is the Killer App and Dealstorming