American Circulating Libraries Not in Kaser [pdf] is an ongoing list of American circulating libraries not found in David Kaser’s “Checklist of American Commercial Library Enterprises, 1762–1890,” a preliminary list of 439 circulating libraries, in A Book for a Sixpence: The Circulating Library in America. The Brooklyn circulating libraries listed were first published in my article “Yet More American Circulating Libraries: A Preliminary Checklist of Brooklyn (New York) Circulating Libraries”. The list includes, and is an expansion of, the list of Brooklyn circulating libraries published in my 2006 article.