Len Deighton's Action Cook Book is a 1965 collection of cookery strips (known as a cookstrip, an invention of Len Deighton's from his days as a student at the Royal College of Art) originally published in the Observer newspaper, with additional information and notes. Aimed at "an audience of men unskilled at knowing their way around the kitchen", the book has been described as a cult classic from the period and helped pave the transition from cooking being only for women, into being a sophisticated expectation of a modern man.