The artworks of the US artist Cy Twombly (1928-2011) are considered to be hermetic and inaccessible. Pencil scribblings, explosions of paint, tumbling lines, overlapping layers of color, and inscriptions, geometrical figures, numerals, rows of numbers, words, fragments of quotations, and enigmatic work-titles present very special challenges to both researchers and viewers. While art historians together with scholars of Egyptology, Archaeology, German, Greek, English, Japanese, and the Romance languages inquire into the relation between title, work, and inscribed quotations, leading representatives of research on Twombly focus on the visual language and scriptural-imagistic quality of Cy Twomblys work. Through comprehensive interpretations of famous single works and groups in all the artistic media employed by Twombly, the volumes cross-disciplinary view opens up a route into the associative-referential visual language of Cy Twombly.