Chef has an intense passion for his work. He loves cooking, and his easy-going nature and good sense of humour puts his guests at ease.
Taking dishes straight off the restaurant's menu and putting them into a cookbook doesn't work, because as a chef you have your own vision of what your food is, but you can't always explain it. Or you can't pick recipes that best illustrate who and where you are and what you're doing. And if the recipes don't work, you don't have a book.
Cooking is all about people. Food is maybe the only universal thing that really has the power to bring everyone together. No matter what culture, everywhere around the world, people get together to eat.