Udacity recently released a series of videos led by Steve Blank, entitled How to Build a Startup: The Lean Launchpad. This is far and away the most accessible and approachable way to to dig into Customer Development. The class summary says it all:
Learn the key tools and steps to build a successful startup (or at least reduce the risk of failure). An introduction to the basics of Steve Blank’s famous Customer Development process, where entrepreneurs “get out of the building” to gather massive amounts of customer and marketplace feedback, and then use that feedback to continuously iterate and evolve their startup business models, improving the chances of success at every step.
If you’re a startup founder – tech or not – I’d highly recommend that you watch this video series as soon as possible.