Subject/Research Files series materials are arranged alphabetically and contain the following substantial subseries of materials: Geller and Randi, Gundella, and Magic and Conjuring. The subseries on illusionist Uri Geller and stage magician and scientific skeptic James Randi focusing on prominent court cases and correspondence between Truzzi and both men. Included in this subseries are copies of various court proceedings. The subseries titled Gundella Letters include letters written to Gundella the Witch (Marion Kuclo) from individuals seeking her advice. It appears that Truzzi had been given access to the correspondence for purposes of sociological research and was in the process of analyzing the materials. They are arranged in numerical order according to the number system assigned to them by Truzzi. Finally the subseries on Magic and Conjuring is arranged alphabetically according to the last names of the individual magicians and conjurors Truzzi was collecting information on and/or from. These files include correspondence, clippings, and other publicity.