Alphonse Mucha and Art Nouveau's enduring impact.

Artistic lessons from Rachel Ruysch, one of the masters of floral still life paintings.

Good advertising is a pop of art in an unexpected place: a subway station, a doctor's office, a bleak highway.

Nostalgia has been described as a longing for something that never existed. A couple years ago, I turned 40. Unlike a lot of my...