The form and function of Koan literature: a historical overview / T. Griffith Foulk -- The antecedents of encounter dialogue in Chinese Ch?�an Buddhism / John R. McRae -- Mah??k??syapa's smile: silent transmission and the Kung-an (K??an) tradition / Albert Welter -- Kung-an Ch?�an and the Tsung-men t?�ung-yao chi / Ishii Sh?�d?? -- Visions, divisions, revisions: the encounter between iconoclasm and supernaturalism in K??an cases about Mount Wu-t?�ai / Steven Heine -- "Before the empty eon" versus "A dog has no Buddha-nature": Kung-an use in the Ts?�ao-tung tradition and Ta-hui's Kung-an introspection Ch?�an / Morten Schl?�tter -- K??an history: transformative language in Chinese Buddhist thought / Dale S. Wright -- Ikky?� and K??ans / Alexander Kabanoff -- Transmission of Kirigami (secret initiation documents): a S??t?? practice in medieval Japan / Ishikawa Rikizan -- Emerging from nonduality: K??an practice in the Rinzai tradition since Hakuin / Michel Mohr -- K??an and Kensh?? in the Rinzai Zen curriculum / G. Victor S??gen Hori.