In this excerpt from the new book 'Speak Data,' the Wharton professor and best-selling author shares his thoughts on how we ...

Once a year, an astronomical alignment ushers in this seasonal change. Like its winter counterpart, the summer solstice is celebrated across the world—and shrouded in myth.

The winter solstice—a day many hear about, but may not completely understand. Most people know it’s the shortest day of the ...