Artists on Walter De MariaArtists on Walter De Mariais the second installment in a series culled from Dia Art Foundations Artists on Artists lectures, focused on the work of artist Walter De Maria. Established in 2001, the lecture series highlights the work of modern and contemporary artists from the perspective of their colleagues and peers. This Artists on Artists title marks the fortieth anniversary of De MariasThe Lightning Field,The New York Earth Room, andThe Vertical