The first volume of the catalogue raisonné deals with Cage's Ryoanji cycle of pencil drawings, which were inspired by the stones in the Ryoan-ji Garden in Kyoto. The publication includes a pamphlet containing the German translation of the text. There is a checklist of titles, a list of works discovered after catalogue completion, a discussion of work materials and related drawings. Forthcoming volumes will cover the artist's prints and watercolors.