Agnes Martin's (1912-2004) celebrated grid paintings are widely acknowledged as a touchstone of postwar American art and have influenced many contemporary artists. Martin's formative years, however, have been largely overlooked. In this revelatory study of Martin's early artistic production, Christina Bryan Rosenberger demonstrates that the rapidly evolving creative processes and pictorial solutions Martin developed between 1940 and 1967 define all her subsequent art. Beginning with Martin's initiation into artistic language at the University of New Mexico and concluding with the reception of...