Wifredo Lam: When I Dont Sleep, I Dream. Over a career spanning six decades, Wifredo Lam radically expanded the purview of modernism. Published in conjunction with the most extensive retrospective devoted to the artist in the United States, Wifredo Lam: When I Don't Sleep, I Dream brings together more than 150 works from his prolific career-including paintings, large-scale works on paper, collaborative drawings, illustrated books, prints, ceramics, and archival material.