Clarice Cliff Stanley Kubrick when they wrote their book; Kay was Kubrick's personal assistant, and as set designer Peter had been able to decorate a room in "A Clockwork Orange" with a frieze he has designed based on original landscapes by Cliff. The collecting market for Clarice Cliff pottery is complex; it is still possible to find examples of "Crocus", Cliff's longest produced pattern (1928–1964) for as little as £30–50. But rare combinations of shape and pattern attract very high prices at auction. The world record price for a piece of Clarice Cliff is held by Christie's, South Kensington, London, who sold
What Katy Did as Dorry, Bryn McAuley as Joanna, and Dean Stockwell as "Tramp". A 1972 UK movie adaptation, "Katy", starred Clare Walker, and the 1962 eight-part TV series made in the UK, also called "Katy", featured rising star Susan Hampshire in the title role. In 2015, author Jacqueline Wilson wrote her novel "Katy", which is a modern retelling of "What Katy Did". The August 2016 edition of Storytime featured a new illustrated adaptation with illustrations by Italian artist Marco Guadalupi. "What Katy Did" was followed by four sequels: "What Katy Did at School" in which Katy and Clover attend the fictional Hillsover