Hekiganroku and the Mumonkan - Koans

[Xue Sheng]

The Gateless Gate - Mumonkan

A collection of 48 Chan (Zen) koans compiled in the early 13th century by the Chinese Zen master Wumen Hui-k'ai (1183–1260)

The Blue Cliff Record - Hekiganroku

A collection of Chán Buddhist koans originally compiled in China during the Song dynasty in 1125 and then expanded into its present form by the Chán master Yuanwu Keqin (1063 – 1135).