With a few more hours to think it through, it’s fairly tricky coming up with a precise ranking of the largest trade publishers if we limit the companies to a comparable set of North American-only revenues. (Case in point, yesterday at different points in time the NYT called Perseus the sixth- and eighth-largest trade publisher — we’re not sure either is correct if you look at the “publisher” part of the company rather than the distributor part.) To the extent that the biggest companies report their sales, they generally do not break out their revenues by territory. So we’ve done some further […]