Blue Book was a popular 20th-century American magazine with a lengthy 70-year run under various titles from 1905 to 1975. It was a sibling magazine to Redbook.
Launched as The Monthly Story Magazine, it was published under that title from May 1905 to August 1906 with a change to The Monthly Story Blue Book Magazine for issues from September 1906 to April 1907. For the next 45 years (May 1907 to January 1952), it was known as The Blue Book Magazine, Blue Book Magazine, Blue Book, and Blue Book of Fiction and Adventure. The title was shortened with the February 1952 issue to simply Bluebook, continuing until May 1956. With a more exploitative angle, the magazine was revived with an October 1960 issue as Bluebook for Men, and the title again became Bluebook for the final run from 1967 to 1975.