This sixth volume of Edward Ruscha: Catalogue Raisonne of the Paintings documents the 227 paintings and studies for paintings made between 1998 and 2003. Though a number of these works refer in some degree to Ruscha's output of the past two decades, the period inaugurates two major series--the Metro Plots, which diagram streets in Los Angeles and American cities, and the celebrated Mountain paintings. A third series, loosely grouped, takes books as its subject. This period is also notable for the appearance of the first of the Course of Empire paintings, with which...