Zen Buddhism developed a large literary tradition based on the teachings and sayings of Chinese Zen masters. One of the key texts in this genre is the "Platform Sutra" attributed to Zen patriarch Huineng, it gives an autobiographical account of his succession as Ch'an Patriarch, as well as teachings about Ch'an theory and practice. Other texts are Koan collections, which are compilations of the sayings of Chinese masters such as the "Blue Cliff Record" and "The Gateless Gate". Another key genre is that of compilations of Zen master biographies, such as the "Transmission of the Lamp". Buddhist poetry was also an important contribution to the literature of the tradition.