David Kessler (born 1 April 1957) is a British author of mystery novels and thrillers. The plots of his novels often involve people falsely accused of crimes, legal battles, DNA, computer hacking and police investigations and are characterised by multiple plot twists and last-minute surprises. With the exception of A Fool for a Client, his early novels (published by Hodder Headline) were set in Britain. His new series of books (published by HarperCollins) is set in the Bay Area of California and centres on a series of recurring characters including the lawyer Alex Sedaka and his paralegal Juanita Cortez. His latest series, published under the pseudonym "Adam Palmer", introduces the character of Daniel Klein, an expert on ancient Semitic languages.