About Christoph Keller Books by Christoph Keller The Rodney Graham Songbook by (artist) Rodney Graham edited by Kathy Slade & Christoph Keller Aunt Maud's Scrapbook by (artist) Sydney Vermont edited by Christoph Keller & Kathy Slade Modern Optical Experiments in Typography Univers Ultra Light Oblique (1968) by (artist) Tim Lee & Mark Soo edited by Christoph Keller & Kathy Slade