Science Fiction Book Club
The Science Fiction Book Club (SFBC) was a book club started by Doubleday Publishing in 1953. The Club originally offered one selection per month. This practice continued until July, 1969, when a second selection was offered.
In the late 1960s, the SFBC began publishing hardcover editions of paperback originals.
For most of its existence, it was edited by Ellen Asher who was one of the more influential (if unsung) editors in the field.