Stamp dealers generally divide into two broad groups—dealers and publishers. Most of the great American publishers—Scott, Minkus, and Harris among them—began as traditional stamp dealers selling stamp by stamp to collectors. Smart and hard working stamp dealers can make a nice living. But publishers, especially album publishers, have far fewer competitors and can sell a product that can be manufactured rather than be purchased from retiring collectors as is the case of traditional dealers. It’s no coincidence that the most successful stamp dealers over the last century have nearly all been publishers.
For most of its history, the Scott publishing company has had excellent owners and managers. First, there was J. Walter Scott himself, and then in the early twentieth century the company was run by John Luff, the greatest philatelist of his time. By 1930, the company was managed by Hugh Clark, who, with his wife Theresa, designed and published the Scott Specialty series of albums. It is hard to overstate what a boon to philately in this country the Scott Specialty series has been. Comprising scores of volumes, the Specialty series is a group of albums, usually one per country, that has spaces for all the issued stamps of that country. Annual supplements are issued for new issues. The Scott Specialty series lets collectors easily concentrate on the stamps of whatever country they want.
J. Walter Scott had no idea when he issued his first price list that he was starting something that would be of so much value to a major hobby. Where he deserves credit though is in that he saw how philately was developing, and throughout his career he was innovative and sought ways to make his numbering system and albums of greater and greater value to collectors.