Our guide to the people ­making waves and ­breaking barriers in the ­businessWhen compiling JCK’s first Power List, we kept circling back to the question: How do you define power?We decided early on that this industry was too ­sprawling and diffuse for us to rank its most powerful people on a strictly numerical basis. So we opted to break down our rankings by sector (each list is numbered for ease of reading; we did not rank individuals in each category). Not everyone on our list racks up millions of dollars in sales or can make exhibitors snap to ­attention at trade shows. Some of them operate strictly behind the scenes. But all of them are innovators who are ensuring this tradition-bound business prospers in the 21st century.Of the 50-plus people who made the cut, we chose to highlight 10 we thought deserved special attention­ because they likely fly beneath most people’s rad