I always carry a sketchbook around with me, and I sketch whenever I can... I might be in a financial review and be sketching because I find that I actually listen better when I sketch. Truth be told, there are probably more sketches in my books than there are written notes.

When I was either 7 or 8 years old, I did a sketch every day of my teacher and what she wore. At the end of the year, I gave her the sketchbook. For me, the sketching of dresses was about fantasy and dreams.

Drawing is the only thing I've found in which I can lose myself completely. I love it. It started as something that relaxed me, but now it's a struggle because I'm pushing myself. The day-to-day sketching is fraught.

Objectifying is kind of a funny thing. Art is objectification, all art, because you're taking someone and making them into an object. But people can also talk back more to you when you're sketching them. They can look at you and say, 'Oh man, you got me wrong.'

For me, the sketching of dresses was about fantasy and dreams. In my little room at home, I felt that I was somewhere else. In Paris, for instance.

I studied to be an architect. And I find tremendous similarities between building a company and the design process. Businesses have to do their planning on the fly in a fashion similar to an architect sketching.

Design has long gone from tinkering and sketching of auteurs in isolation to a powerful catalyzer of growth.

Sketching in general - anywhere, not just in Gitmo, but in life, in the world - is a profoundly disruptive act. Because you're creating something when you're kind of expected to consume or sit passively. I've always sketched things as a way to get into them, whether it was a fancy nightclub or, you know, to have kids think I was cool, whatever.

Sometimes the very best of all summer books is a blank notebook. Get one big enough, and you can practice sketching the lemon slice in your drink or the hot lifeguard on the beach or the vista down the hill from your cabin.