Sibylle Von Flue Related books Pingu and His Friends Penguin Character Books Ltd • 1990 Pingu and the Seal Penguin Character Books Ltd • 1993 Pingu Delivers the Post Penguin Character Books Ltd • 1994 Pingu Has a Hard Time (Pingu) Penguin Character Books Ltd • 1993 Pingu the Sportsman (Pingu) Penguin Character Books Ltd • 1993 Pingu the Star (Pingu) Penguin Character Books Ltd • 1993