K-Pop Demon Hunters creates a universe where electric digital animation meets old Korean symbolism in unexpected ways.

Anthony Grudin, an assistant professor of art history at the University of Vermont, for example, discussed the many nonhuman animals depicted and loved by Andy Warhol, the great American pop artist.

As accidental adverts for art shows go, a giant pooch made of flowers is a crowd pleaser. Outside the Guggenheim Bilbao in northern Spain, Jeff Koons’ much-loved flower 1992 sculpture “Puppy ...