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National Library Card Sign-up Month

St. Louis County Library and the St. Louis Cardinals are teaming up to offer a limited edition Cardinals library card in September for National Library Card Sign-up Month. Sign up for a library card online or in-person at any St Louis County Library location. A photo ID and proof of current address will be required. Library cards are free to those who live in or pay property taxes to St. Louis County, St. Louis City or St. Charles County. Learn more.