This is a blog about product development and other aspects of business strategy I find interesting.

My name is George Castellion. Many of my posts are stories about finding out what customers really want — and why. They depict events I encountered as an R&D manager, marketing director, and consultant.

Sherlock Holmes was my hero when I was a kid — now, like Holmes I elicit previously unknown information, and insights from strangers. I find out what customers really value in a new product … and why.