Blue Book Magazine

Blue Book was a popular 20th-Century American magazine with a 70-year run under various titles from 1905 to 1975. It was a sibling magazine to Redbook.

In the 1920s, Blue Book was regarded as one of the "Big Four" pulp magazines (the best-selling, highest-paying, and most critically acclaimed pulps), along with Adventure, Argosy, and Short Stories.

Over the years many SF stories were published in Blue Book.