"I’m just a lone wolf," says Jim Dine. Dinner is being prepared at his house in the Blue Mountain foothills of Walla Walla, Washington, which he shares with his wife, the photographer Diana Michener.

Jim Dine is an American artist, a key figure in the pop art movement. Known for his use of everyday objects, including tools, robes, and hearts, Dine's work combines personal iconography with pop ...