Her directorial work includes documentaries, TV films, children's television (e.g. ''[[Numberjacks]]'' for the [[BBC]]), radio and museum voiceovers.<ref>{{cite web|url=https://www.imdb.com/title/tt1695622/fullcredits/?ref_=tt_ov_st_sm|title=Numberjacks|website=www.imdb.com|access-date=19 May 2020}}</ref><ref>{{cite web|url=https://www.imdb.com/title/tt1574644/fullcredits?ref_=ttco_ql_1|title=Strictly Tango|website=www.imdb.com|access-date=19 May 2020}}</ref><ref>{{cite web|url=https://www.imdb.com/title/tt1236241/?ref_=nm_flmg_dr_2|title=London Tango|website=www.imdb.com|access-date=19 May 2020}}</ref><ref>{{cite web|url=https://www.mandy.com/actor/profile/adrian-wheeler|title=Adrian Wheeler|website=www.mandy.com|access-date=19 May 2020}}</ref><ref name="The Telegraph"/>
She is best-known for her writing. She received a commendation in the National Poetry Competition in 2005. In 2007, she won the ''[[The Daily Telegraph]]'''s 'First thousand words of a novel competition', and this became the opening of her debut work, ''Instruments of Darkness''.<ref name="The Telegraph"/> Most of her novels are set in the late 18th century and feature the tenacious detective pairing of Mrs. Harriet Westerman, a dynamic [[Sussex]] landowner, and her neighbour Gabriel Crowther, an anatomist of quiet renown hiding a baronial past. Robertson has been a candidate for the [[CWA Historical Dagger]] three times, for ''Circle of Shadows'', ''Island of Bones'' and ''Theft of Life''.<ref>{{cite web|url=https://thecwa.co.uk/island-of-bones|title=Historical 2011|website=thecwa.co.uk|access-date=21 May 2020}}</ref><ref>{{cite web|url=https://thecwa.co.uk/imogen-robertson|title=Imogen Robertson|website=thecwa.co.uk|access-date=21 May 2020}}</ref><ref>{{cite web|url=https://thecwa.co.uk/theft-of-life|title=Historical 2014|website=thecwa.co.uk|access-date=21 May 2020}}</ref> She has co-written three novels: she wrote ''King of Kings'' with [[Wilbur Smith]];<ref>{{cite web|url=http://www.historiamag.com/king-of-kings-wilbur-smith-imogen-robertson/|title=King of Kings by Wilbur Smith with Imogen Robertson|website=www.historiamag.com|access-date=21 May 2020}}</ref> she collaborated with [[US]] screenwriter Darby Kealey (a writer for ''[[TV series|Patriot]]'') under the pseudonym 'Imogen Kealey' for ''Liberation'', a [[World War II]] thriller about [[French Resistance|French resistance]] and [[Special Operations Executive|SOE]] operative [[Nancy Wake]], which is currently in movie production with [[Anne Hathaway]] as the lead character;<ref>{{cite web|url=https://www.thebookseller.com/news/little-brown-bags-rights-second-world-war-tale-liberation-965371#|title=Little, Brown bags rights to Second World War tale Liberation|website=www.thebookseller.com|access-date=19 May 2020}}</ref><ref>{{cite web|url=https://podcasts.apple.com/us/podcast/acclaimed-bestsellers-imogen-kealey-discuss-historical/id1462914754?i=1000473524278|title=Acclaimed Bestsellers Imogen Kealey discuss Historical Thrillers, Screenplays, Craft, and Co-Writing|website=podcasts.apple.com|access-date=19 May 2020}}</ref> she wrote another thriller, ''The House'', with former deputy leader of the [[Labour Party (UK)|Labour Party]], [[Tom Watson (Labour politician)|Tom Watson]].<ref>{{cite web|url=https://www.independent.co.uk/arts-entertainment/books/news/tom-watson-the-house-novel-book-parliament-labour-author-a9284596.html|title=Tom Watson to publish debut novel The House – about ‘cold-blooded ambition and betrayal’ in Parliament|website=www.independent.co.uk|access-date=19 May 2020}}</ref><ref>{{cite web|url=http://www.dhhliteraryagency.com/news/imogen-robertson-tom-watson-collaboration|title=Imogen Robertson & Tom Watson Collaboration|website=www.dhhliteraryagency.com|access-date=19 May 2020}}</ref>
She lives in London with her husband.<ref name="The Telegraph"/>
