http://www.inc.com/magazine/201106/the-way-i-work-david-karp...
Overall, quite a heart warming story of someone being very successful yet also being happy and not killing themselves with work and pressure.
BTW, I hope Mr. Karp is not offended, but he definitely has some asperger tendencies. For example, he found it necessary to describe exactly which brand and type of pen he uses to write notes in his notebooks.