If you want to learn more about the underlying thought of Motherwell and Abstract Expressionism than get a copy of this book. Ethics is the apex of philosophy and Motherwell's work was a visual search for a parallel to his ideas on philosophy. His elegies raised modern arts stature in his Spanish elegy paintings,because of the combination of radical visualization and intellect . Robert Motherwell On Paper isn't just about repros of work on paper such as the the collages, the ink drawings etc. this book has a good discussion of RM's knowledge and influence from Zen Buddhism.I have Motherwell's collected writings but refer more to this book. Expensive but worth it for those wanting to know a lot about Motherwell and Abstract Expressionism.