We now embark on a two-part series about the challenges of entrepreneurship.

Professor Tom Eisenmann is co-Chair of the Harvard Business School Center of Entrepreneurship.

He recently wrote an important book called Why Startups Fail: A New Roadmap for Entrepreneurial Success, which is an essential complement to the “Lean Startup”.

It looks at ventures which followed this approach and yet failed. It is a fabulous book that reminds us that failure can happen even if you are a hard-working entrepreneur. It helps identify some patterns and also explains how to "fail well" and to restart.

Entrepreneurship is hard, and studying successes and failures is a source of learning and inspiration. This will be the object of next week's podcast so stay tuned.