Book Expo America is the large annual convention of the book publishing industry.  For the past few days, thousands of people descended on the Javits Center in New York for the annual ritualistic gathering of the tribes of this 500 year old business.  As regular readers know, this year I have attended the Consumer Electronic Show, the NATPE television convention and the Chicago Auto Show.  Once again I found myself navigating an annual convention of a business that targets the consumer [BEA is primarily for the ‘trade’ or consumer part of the book publishing industry].  I look …