Book Copyright Renewal Database

Stanford has just come out with a copyright renewal database for books published between 1923 and 1963. One of the problems that people struggle with is trying to determine if a given work is or is not under copyright, since materials published during that timeframe had to have copyright protection renewed (unlike today, when copyright is automatic for the entire term of copyright protection). The database is now available and builds on work undertaken by Project Gutenberg.

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