Despite her popularity and success, Heyer was largely ignored by critics other than Dorothy L Sayers who reviewed "An Unfinished Clue" and "Death in the Stocks" for "The Sunday Times". Although none of her novels was ever reviewed in a serious newspaper, according to Duff Hart-Davis, "the absence of long or serious reviews never worried her. What mattered was the fact that her stories sold in ever-increasing numbers". Heyer was also overlooked by the "Encyclopædia Britannica". The 1974 edition of the encyclopædia, published shortly after her death, included entries on popular writers Agatha Christie and Dorothy L. Sayers, but did not mention Heyer.