This tool is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike license. To request copies of the files, contact Michael Brewer or Carrie Russell.
I would like to thank the members of the ALA OITP Copyright Education Subcommittee for their expert advice and support, and Peter Hirtle for his web page, "Copyright Term and the Public Domain in the United States," which helped inform the development of this tool. Michael Brewer
