There are 27 branches in the Pima County Library system and many residents are discovering they offer much more than books and computers. People are taking all types of classes and programs, from chair yoga and dance, to homework help and instruction about solar energy. We visit a couple of branches in Tucson and talk to people of different ages and backgrounds who are taking advantage of some of the services: They are all for free and offer a cool getaway from the summer heat as our temperatures rise dramatically.