Marina Oliver has edited books and once published her own magazine, as well as writing articles in magazines and newspapers. She has published over 50 novels under her own name and several pseudonyms, some in the USA and translation, most in large print and other editions. She has also written four books in the Successful Writing Series for How To Books. Write and Sell Your Novel is available in an updated fourth edition. Studymates published Writing Historical Fiction in 2006.

She has also written a history of her old school, A Century of Achievement, and Castles and Corvedale, a guide to accompany a recently developed walk in Shropshire.

She belongs to various writing organisations, including the Society of Authors, Romantic Novelists' Association, Romance Writers of America, and the Crime Writers' Association.

She was an adviser to the third edition of Twentieth Century Romance and Historical Writers (published 1994 by St James' Press Gale International).

Marina judges short story and novel competitions, appraises typescripts for the Arts Council and the StorytrackS agency, which she helped to establish, reviews for the Historical Novel Society, runs courses at major writing conferences and lectures widely on writing topics.

Deborah Oliver has worked in the magazine publishing industry for more than 15 years and is currently production editor of Personal Computer World and ComputerActive. Her experience has ranged from writing, editing, sub-editing and rewriting technical copy on weekly, fortnightly and monthy magazines on subjects as diverse as economic development and computers.

She has copy edited and proofread manuscripts for Scarlet, and has run workshops on 'starting to write' at Writers' Holidays.