The first Pixi book was published in Germany 70 years ago. With over 2,500 titles in millions of copies, it is probably the most successful and persistent picture book series.
Agnes Sonntag: Pixis behave like gremlins, are as cute and colorful as Smarties, as druggy as gummy bears and as successful as their partner animal, the VW Beetle. The formula for success, which is probably somewhere in a safe at Carlsen Verlag, is: 10 times 10 times 24.