Laura Thompson attended stage school and aged sixteen was awarded an exhibition to read English at Oxford. Her first book, THE DOGS: A PERSONAL HISTORY OF GREYHOUND RACING, won the Somerset Maugham Award. In her twenties she wrote two books about horse racing: QUEST FOR GREATNESS, the story of her favourite racehorse Lammtarra, and NEWMARKET, a history of the town where she lived for some years.

Her 2003 study of Nancy Mitford, LIFE IN A COLD CLIMATE, was followed by AGATHA CHRISTIE: A MYSTERIOUS LIFE, the first major Christie biography for more than twenty years. A DIFFERENT CLASS OF MURDER: THE STORY OF LORD LUCAN was reissued in 2018 in a new edition, containing previously excised information. Also published that year was REX V EDITH THOMPSON, a re-examination of the famous 1922 Thompson-Bywaters murder case, which was shortlisted for a CWA award. THE LAST LANDLADY, a memoir of her publican grandmother, was a three-time book of the year in 2018 and shortlisted for the Big Book Award.

THE SIX, which tells the story of the Mitford sisters, became a New York Times best seller in October 2016. AGATHA CHRISTIE was published in the US in 2019 and shortlisted for an Edgar Allan Poe award.

Among various TV appearances she has presented a BBC4 film BACK TO THE BARRE, about her return to ballet in adulthood, and in 2020 filmed three documentaries about Agatha Christie. She is a contributing editor to Town and Country magazine, and writes for Harper’s Bazaar and the TLS.

AGATHA CHRISTIE was reissued in May 2020, with updated material and a new introduction. In October 2020 LIFE IN A COLD CLIMATE will be reissued in paperback, and THE LAST LANDLADY published in the US.