strong left-wing influence in Great Britain from 1936 to 1948. It offered a monthly book choice, for sale to members only, as well as a newsletter that acquired the status of a major political magazine. It also held an annual rally. Membership peaked at 57,000 but it eventually ceased publishing in 1948. The books and pamphlets were published with their distinctive covers — orange for paperback (1936–1938) and red for hardback (1938–1948) editions. Transition to science fiction and fantasy genres From the early 1960s through the late 1990s, Gollancz Science Fiction was the pre-eminent hardcover science fiction publishing list in the UK, for the first quarter century being both recognisable by, and famous for, its distinctive Gollancz Yellow dust-jackets with black and magenta typography, providing a major part of the publisher's output, alongside Gollancz' crime fiction and general fiction lists. Full-colour dust-jackets were introduced on the science fiction list from the mid-1980s adding significantly to production costs, but also to commercial sales - an important consideration with increasing pressure upon the UK's public library system's budgets. In 1998, Gollancz was diminished into just the science fiction and fantasy imprint Gollancz Science Fiction after it was acquired by Orion Publishing Group. Gollancz has also proceeded to publish the SF Masterworks series, and the Fantasy Masterworks series previously appearing under the Orion sister-imprint Millennium. Gollancz has published award-winning and award-nominated books by, among others: Joe Abercrombie J. G. Ballard (later works) Stephen Baxter Greg Bear Jonathan Carroll Mark Chadbourn Arthur C. Clarke Michael Coney Robert Cormier Peter Delacorte Thomas Disch Stephen R. Donaldson Christopher Evans Jaine Fenn Maggie Furey Mary Gentle William Gibson Jon Grimwood Michael Harrison Joe Hill Robert Holdstock Stephen Hunt Gwyneth Jones Graham Joyce Roger Levy James Lovegrove Scott Lynch Paul McAuley Ian McDonald George R. R. Martin Richard Morgan Terry Pratchett Christopher Priest Robert V. S. Redick Alastair Reynolds Keith Roberts Adam Roberts Patrick Rothfuss Geoff Ryman Brandon Sanderson Robert J. Sawyer Robert Shaw Dan Simmons Alison Sinclair John Sladek Bruce Sterling Jack Vance Ian Watson Gene Wolfe Expansion into manga In 2005, Gollancz set up a manga publishing arm, Gollancz Manga, which published UK editions of various Viz Media properties. As of 2014, Gollancz no longer publish manga and Viz Media have re-released the publisher's series. The following titles have been published: SF Gateway website In 2011, Gollancz launched the SF Gateway website, an online library that