I would say his audience is not just the influential business types, but the types of business influencers who don't have time to read those nerdy book things,

I would say his audience is not just the influential business types, but the types of business influencers who don't have time to read those nerdy book things, so they buy the audio cliffnotes version of such books from Skymall and just listen to the book summaries on the plane.