This document discusses what librarians wish publishers knew about public libraries in Canada. It provides statistics on the large number and reach of libraries, with over 3,400 branches serving 90% of Canadians. Libraries have millions of annual in-person and online visits. They spend over $100 million on materials each year, with the majority going to books. Libraries provide extensive programming for children, teens and adults to promote literacy. Librarians expressed a desire for more communication with publishers regarding new titles, formats and metadata to help patrons discover new materials.