Looking for a way to keep warm this winter that doesn't involve you sitting in front of the TV in your pajamas? Join a new book club exploring John Muir, father of the National Parks and founder of the Sierra Club. The book club, sponsored by the Oak Park Park District, will meet once a month for three months on Tuesdays, Jan. 24, Feb. 21, and March 21, at Austin Gardens Environmental Education Center, 167 Forest Ave., in Oak Park. There is no charge, but please register here.