Oklahoma’s official state government blue book has been titled the Oklahoma Almanac since 1993, but it has had a variety of names since its inception in 1909 as the Oklahoma State Manual. Other titles include Oklahoma Red Book (1912), Directory of the State of Oklahoma (1917 to 1959), Directory and Manual of the State of Oklahoma (1961 to 1971), and Directory of Oklahoma (1973 to 1991).
Since 1917, the book has been published biennially during odd years. The one exception has been the 1982 Diamond Jubilee edition, celebrating Oklahoma’s 75th anniversary of statehood.
The book has been published by the Oklahoma Department of Libraries since 1981. It is a major reference source on the State of Oklahoma, including state government information, election results, county statistics, education and commerce information, and a wildlife and nature section.