structural:expansion
In popular culture

Escher's fame in popular culture grew when his work was featured by Martin Gardner in his April 1966 "Mathematical Games" column in Scientific American. Escher's works have appeared on many album covers including The Scaffold 's 1969 L the P with Ascending and Descending; Mott the Hoople 's eponymous 1969 record with Reptiles, Beaver & Krause 's 1970 In A Wild Sanctuary with Three Worlds; and Mandrake Memorial 's 1970 Puzzle with House of Stairs and (inside) Curl Up. His works have similarly been used on many book covers, including some editions of Edwin Abbott 's Flatland, which used Three Spheres; E. H. Gombrich 's Meditations on a Hobby Horse with Horseman; Pamela Hall's Heads You Lose with Plane Filling 1; Patrick A. Horton's Mastering the Power of Story with Drawing Hands; Erich Gamma et al.'s Design Patterns: Elements of Reusable Object-oriented software with Swans; and Arthur Markman's Knowledge Representation with Reptiles. The "World of Escher" markets posters, neckties, T-shirts, and jigsaw puzzles of Escher's artworks. Both Austria and the Netherlands have issued postage stamps commemorating the artist and his works.