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Panther Books Ltd was a British publishing house especially active in the 1950s and 1960s, specialising in paperback fiction. It was established in May 1952 by Hamilton's Ltd and titles carried the line "A Panther Book" or "Panther Science Fiction" on the cover. Science fiction was one of the major genres published by Panther Books and titles included Ray Bradbury's The Golden Apples of the Sun and Asimov's Foundation Trilogy. In 1954 Gordon Landsborough was employed as editor and started improving the quality of the imprint. Instead of publishing original genre novels in paperback and hardback, Panther Books became a reprint publisher, doing paperback reprints of best-selling hardcover novels from other publishers. The quality of the cover art was improved and the list expanded to include non-fiction titles and fiction titles by internationally known, best-selling writers.
By at least April 1966, books published under the Panther name indicate that the business was based at 108 Brompton Road, London, S.W.5. However, records of the tumultuous process of mergers and acquisitions in the publishing industry show that by 1968, Granada Group Ltd had acquired a number of publishers who became subsidiary companies of Granada Publishing Ltd. These included, amongst others, Panther Books Ltd, and thus Panther Science Fiction became a Granada imprint.
In 1983, Granada sold the publishing side of its business to the Scottish publishers William Collins, Sons & Co, based in Glasgow.
In 1989, William Collins Sons & Co merged with the American Harper & Row publishers, located in New York, to form HarperCollins, the British side of the company being managed through Harper Collins Publishers Ltd. Harper Collins Publishers continued to trade in 2003 with head offices at Bishopbriggs, Glasgow, employing about 500 people.