This is the only essential annual SF collection. Widely regarded as the benchmark anthology for every science fiction fan, "The Mammoth Book of Best New SF 20" continues to uphold its standard of excellence with over two dozen stories from the previous year. This year's volume includes many bright young talents of science fiction, as well as a host of established masters. It covers every aspect of the genre - soft, hard, cyberpunk, cyber noir, anthropological, military and adventure. Also included is a thorough summation of the year and a recommended reading list.

Hugo Award-winning editor Gardner Dozois' annual anthology has long been considered the standard by which other best-of-the-year SF collections are judged. After two decades' worth of superlative science fiction, Dozois now presents a retrospective compilation culling from the last 20 years. Here under one banner is some of the finest work by the genre's leading authors, with a star-studded list of contributors that features among others: Stephen Baxter, Greg Bear, William Gibson, Terry Bisson, Greg Egan, Ursula K. Le Guin, Robert Reed, Robert Silverberg, Bruce Sterling , Charles Stross, Michael Swanwick, Gene Wolfe. A number of the selections are now considered classics. Some notable stories include: 'Blood Music', Greg Bear's Hugo-winning exploration of nanotechnology. 'Bears Discover Fire', Terry Bisson's tongue-in-cheek consideration of future ursine evolution. 'The Left Hand of Darkness', Ursula K. Le Guin's coming-of-age SF tale. 'The Winter Market', in which William Gibson returns to the subject that made him a cultural icon, cyberpunk. With work spanning two decades, this is the most significant science fiction short story anthology published in years.

For nearly twenty-five years The Mammoth Book of Best New Horror has been the world's leading annual anthology dedicated solely to showcasing the best in contemporary horror fiction. Comprising the most outstanding new short fiction by both contemporary masters of horror and exciting newcomers, this multiple award-winning series also offers an overview of the year in horror, a comprehensive necrology of recent obituaries, and an indispensable directory of contact details for dedicated horror fans and writers. The Mammoth Book of Best New Horror remains the world's leading annual anthology dedicated solely to presenting the best in contemporary horror fiction. Praise for previous Mammoth Books of Best New Horror: 'Stephen Jones . . . has a better sense of the genre than almost anyone in this country.' Lisa Tuttle, The Times. 'The best horror anthologist in the business is, of course, Stephen Jones, whose Mammoth Book of Best New Horror is one of the major bargains of this as of any other year.' Roz Kavaney. 'An essential volume for horror readers.' Locus

War is becoming increasingly 'SF-ized' with remotely controlled attack drones and robot warriors already in development and being tested. Over the past 100 years the technology of war has advanced enormously in destructive power, yet also in sophistication so that we no longer seem to live under the constant threat of all-out global thermonuclear cataclysm. So what will future wars be like? And what will start them: religion, politics, resources, refugees, or advanced weaponry itself? Watson and Whates present a gripping anthology of SF stories which explores the gamut of possible future conflicts, including such themes as nuclear war, psychological and cyberwars, enhanced soldiery, mercenaries, terrorism, intelligent robotic war machines, and war with aliens. All the stories in this collection of remarkable quality and diversity reveals humankind pressed to the limits in every conceivable way. It includes 24 stories with highlights such as: The Pyre of the New Day' - Catherine Asaro. The Rhine's World Incident' - Neal Asher. Caught in the Crossfire' - David Drake. Politics' - Elizabeth Moon. The Traitor' - David Weber. And others from: Dan Abnett, Tony Ballantyne, Fredric Brown, Algis Budrys, Simon R. Green, Joe Haldeman, John Kessel, John Lambshead, Paul McAuley, Andy Remic, Laura Resnick, Mike Resnick & Brad R. Torgersen, Fred Saberhagen, Cordwainer Smith, Allen Steele, William Tenn, Walter Jon Williams, Michael Z. Williamson, Gene Wolfe.

This anthology showcases the most exceptional science fiction stories written by women in recent decades, from classic stars like Ursula K. Le Guin and James Tiptree Jr. to science-fiction greats such Nancy Kress, Lois McMaster Bujold, and Karen Joy Fowler to new award-winning talents.

This thought-provoking collection not only takes us into the past and the future, but also explores what might happen if we attempt to manipulate time to our own advantage. These stories show what happen once you start to meddle with time and the paradoxes that might arise. It also raises questions about whether we understand time, and how we perceive it. Once we move outside the present day, can we ever return or do we move into an alternate world? What happens if our meddling with Nature leads to time flowing backwards, or slowing down or stopping all together? Or if we get trapped in a constant loop from which we can never escape. Is the past and future immutable or will we ever be able to escape the inevitable? These are just some of the questions that are raised in these challenging, exciting and sometimes amusing stories by Kage Baker, Simon Clark, Fritz Leiber, Christopher Priest, Kristine Kathryn Rusch, Robert Silverberg, Michael Swanwick, John Varley and many others.