As many an awkward teenager can attest, being "cool" is not something that can be taught, bought or sold. Our modern definition of cool dates back to the 1950s, when adventurous jazz music, slick fashion trends and challenging literature combined into something palpable. You can do some master's work on the history of cool Tuesday through Thursday (December 9 through 11), when the Mildred Lane Kemper... More >>>