Series I: Business Records
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Big Blue Books catalogs
Cancelled Checks
Little Blue Books catalogs
Photographs
Thank You Note
Series II: Jack Botwin Records
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"As a Man Thinketh"
Correspondence
Series III: Haldeman-Julius Collection at Kansas State College
"Fiftieth Anniversary Celebration of the First Little Blue Book"
"Four Hundred Million Books," by Norman Tanis
Pamphlets
Series IV: Printing Plates
Copper-Electro Printing Plates for An Idle Excursion by Mark Twain (Little Blue Book no. 930)
Copper-Electro Printing Plates for An Idle Excursion by Mark Twain (Little Blue Book no. 930)