Calvin Tomkins first discovered the work of Robert Rauschenberg in the late 1950s, when he began to look seriously at contemporary art. While gazing at Rauschenberg's painting Double Feature, Tomkins felt compelled to make some kind of literal connection to the work, and it is in that sprit that "for the last forty years it's been his] ambition to write about contemporary art not as a critic or a judge, but as a participant." Tomkins has spent many of those years writing about Robert Rauschenberg, whom he rapidly came to see as "one of the most inventive and influential artists of...