Tough Mudder is not a race. It's a challenge.

Unlike other endurance events, Tough Mudder encourages team spirit. The course's design forces you to seek help from others and with twenty obstacles, forty tons of ice and five hundred thousand litres of Grade-A mud set over ten to twelve miles, you're going to need it.

This revival of community is the key to the company's success. In It Takes a Tribe, founder and CEO Will Dean explores the mental, physical and social principles behind the experience and reveals how he built a global tribe. Arguing for clear principles, bravery and persistence, Dean shows a new generation of entrepreneurs why it's important to create a brand that people identify with and love.

It Takes a Tribe is the astonishing inside story of Tough Mudder, and a textbook for anyone looking to start a business or find more followers.