Here is a small opinion about ‘Founders at work’ book (homepage).

In this book you can find 32 interviews of famous IT-person: Wozniak, Spolsky, Levchin, Hannson and many others. You can read how many issues this guys solve and how much effort put in work to achieve goal. But every story is individual, so, you cannot find here any keys to success (instead of work-work-work of course).

So, resume about book: read if you don’t have any other things to do.