The Ann Rudolph Button Collection is a comprehensive holding of buttons including representative examples of almost every type of collectible button, many of which are unique, rare and seldom available to scholars and collectors. Examples of everyday functional and utilitarian buttons are also included. Housed within the Historic Costume & Textiles Collection, the buttons are organized, identified, and catalogued according to standards of the National Button Society.

Extensive research sources including books, catalogs, and journals related to button history, button manufacture, button collecting, and the role of buttons in fashion and dress exist within the OSU Library system and can be accessed via the library catalog, OSCAR. A further enhancement, OSU Libraries is the designated repository for the archives of the National Button Society.