Bats, nurses, Marlene Dietrich, a malevolent figure in a bear suit, two cowboys playing king-of-the-mountain on a rosebush, a group of men placidly eating babies at a makeshift picnic table, while, above them, a tree grows more babies: Marcel Dzama is back. As readers will learn in The Course of Human History Personified , he's a sleepwalker, a sleepdrawer--"I draw during the day, but the ideas come at night." Dzama records his visions in a bedside-table...