Credits (images licensed under the Creative Commons “Attribution” 3.0):
Col Ford and Natasha de Vere: http://www.flickr.com/photos/col_and_tasha/6040763207/
Boston Public Library: http://www.flickr.com/photos/boston_public_library/4837779310/
Boston Public Library: http://www.flickr.com/photos/boston_public_library/4837167359/
NASA: http://www.flickr.com/photos/gsfc/4398656367/
Girl is from vintage magazine.
