Why do some Artificial Intelligence (AI) projects succeed beyond all expectations while others fail miserably?

Amazing achievements like the Deep Blue computer and the Google search engine contrast sharply against utter failures like the Watson Health expert system and the mayhem and even death caused by some self-driving cars.
What determines the success or failure of AI projects? How can one avoid failures in the future?

Our most recent book Artificial Intelligence: Why AI projects Succeed or Fail uses brain science and philosophy to provide answers.

If you work in AI, this book helps you avoid major pitfalls. If you are outside AI, you learn what it is all about and what it can and cannot do.