Dating from the middle of the second century BC to the middle of the ninth century AD, Zen Roots includes the Heart, the Diamond, and the Platform sutras, selections from the Vimalakirti and Lankavatara sutras, Bodhidharma's Principles and Practice, Sengcan's Trusting the Mind, Yongjia's Song of Enlightenment, and Huangbo's Transmission of the Mind. These translations are accompanied by introductions and explanatory notes.