Book excerpt: Is there a secret to Warren Buffett's success? Surprisingly, little is known about what really makes Warren Buffett so extraordinarily successful as an investor. So Nic Liberman set out to uncover the essence of his genius and, along the way, found that this cheerful billionaire has a unique combination of character traits. Being Warren Buffett is not a guide to investing. It is a thought-provoking investigation into the value of self-awareness, and how pairing our personalities to our endeavours could be the key to leading a fulfilling life.