There are two books that had great impact on my professional life. One is Geoffrey Moore’s Crossing the Chasm and the other is Clayton Christensen’s Innovator’s Dilemma. The latter book had higher effect because of its radical theory that most companies fail because it does what it is supposed to do…and do well. Most people who are in high-tech marketing know these books and all the marketing principles and rules.
It’s interesting, though, that none of these authors are successful entrepreneurs. It shows that it’s one thing to know and another thing to do it (and do it well).