An exhibition of approximately 150 original drawings and sketches by illustrator Fiep Westendorp (1916–2004), the artist behind Jip en Janneke, Pim en Pom, Otje, and Pluk van de Petteflet — most created in collaboration with writer Annie M.G. Schmidt. On show are first sketches, original notes in Westendorp's own hand, and finished illustrations spanning decades of work. If you have children or grew up with Dutch children's books, this is the original art behind the images you know. Tickets from €25; under 18 free; Museumkaart valid.