Nicholas Alexander has written the Astra Militarum short story 'The Trophy' and the Imperial Navy story 'The Emperor's Grace'. He lives and works in Cambridge, UK, and is a huge Space Wolves fan.

Author of the Path of the Dark Eldar series and the related novella The Masque of Vyle, along with the Necromunda novel Survival Instinct and a host of short stories, Andy Chambers has more than twenty years’ experience creating worlds dominated by war machines, spaceships and dangerous aliens. He lives and works in Nottingham.

Guy Haley is the author of the Horus Heresy novels Titandeath, Wolfsbane and Pharos, the Primarchs novels Konrad Curze: The Night Haunter, Corax: Lord of Shadows, Perturabo: The Hammer of Olympia, and the Warhammer 40,000 novels Dark Imperium, Dark Imperium: Plague War, The Devastation of Baal, Dante, Baneblade, Shadowsword, Valedor and Death of Integrity.

He has also written Throneworld and The Beheading for The Beast Arises series. His enthusiasm for all things greenskin has also led him to pen the eponymous Warhammer novel Skarsnik, as well as the End Times novel The Rise of the Horned Rat. He has also written stories set in the Age of Sigmar, included in War Storm, Ghal Maraz and Call of Archaon. He lives in Yorkshire with his wife and son.

Matt Smith is one of Black Library's newest authors, and the Warhammer 40,000 short story 'In Service Eternal' is his first. He is based in Norwich and spends his spare time working on his Raven Guard army and training in martial arts.

James Swallow is a New York Times and Sunday Times bestselling author and BAFTA-nominated screenwriter, the only British writer to have worked on a Star Trek TV series.

His Star Trek fiction includes The Latter Fire, Sight Unseen, The Poisoned Chalice, Cast No Shadow, Synthesis, Day of the Vipers, The Stuff of Dreams, Myriad Universes: Seeds of Dissent, and short stories in Seven Deadly Sins, Shards and Shadows, The Sky’s The Limit, and Distant Shores.

His other work includes the Marc Dane thriller series and tales from the worlds of 24, Doctor Who, Star Wars, Halo, Warhammer 40,000, and more. He lives and works in London.

Matt Westbrook has written The Realmgate Wars: Bladestorm for Age of Sigmar, and the novel Medusan Wings for Warhammer 40,000. He lives and works in Nottingham.

Alec Worley is a well-known comics and science fiction and fantasy author, with numerous publications to his name. He is an avid fan of Warhammer 40,000 and has written many short stories for Black Library including 'Stormseeker’, 'Whispers' and 'Repentia'. He has recently forayed into Black Library Horror with the audio drama Perdition's Flame and his novella The Nothings, featured in the anthology Maledictions. He lives and works in London.