“When you go to the library,” said James O. Pawelski, the director of education for the Positive Psychology Center at the University of Pennsylvania, “you don’t walk along the shelves looking at the spines of the books and on your way out tweet to your friends, ‘I read 100 books today!'” Yet that’s essentially how many people experience a museum. “They see as much of art as you see spines on books,” said Professor Pawelski, who studies connections between positive psychology and the humanities. “You can’t really see a painting as you’re walking by it.”