Children's book author Janosch at 90 Tales about little tigers, bears, ducks and frogs have made Janosch popular around the world. The German children's book author celebrates his 90th birthday. The Tiger Duck is 'rubbish'... ... Janosch once said of the little yellow and black striped toy duck on wheels, beloved by children all over the world. The artist doesn't even own a Tiger Duck. He says he simply doesn't need one. Best pals More than 300 Janosch books have been published in 40 languages. A series of films feature the most popular characters — Little Tiger, Little Bear and their Tiger Duck — and many kids have cuddly stuffed animal versions of their favorite picture book heroes. The Filmpark Babelsberg theme park in Potsdam also has a Panamaland, featuring the trio.