Alphabet Soup letters are nostalgic for many. They've been around since the late 19th century for generations of kids to enjoy. Here's how they're made.

Andy Warhol’s Martha Graham Suite celebrates the mother of modern American dance through the lens of a Pop Art icon. Inspired by black and white snapshots from photographer Barbara Morgan, Letter to ...

Andy Warhol, Letter to the World (The Kick) (from Martha Graham) (1968). Est. $20,000–$30,000. French sculptor Niki de Saint Phalle (1930–2002) rose to prominence through her heavily stylized ...