Cutting edge is everywhere
Zalesch is specializing in areas which are not overcrowded. He utilizes ebay and often gets catalogs he wants for a dollar or two. If he is overbid, then he waits for that particular catalog to come around again, and if he really wants it, then he gets it then.
Zalesch has already prepared a number of papers and articles which have been widely published. But there are also reviews of the exhibit available for visitors.