Kerr invented the story after visiting a zoo with her three-year-old daughter. She said her husband
Nigel Kneale was away making a film and "it felt a bit lonely and we wished somebody would come. We'd been to the zoo so it seemed reasonable for a tiger to come. We both thought they were incredibly beautiful." She told the story many times before making it into a book. The book took a year to write and illustrate. Former Children’s Laureate
Michael Rosen has drawn parallels between the book and the author’s life. Kerr spent her early years in
Berlin just before the start of the
Third Reich and her father was on a death list because of his opposition to the
Nazis. Her family fled
Germany and most of their property was seized in 1933 when she was nine years old. Rosen claims the tiger could be based on her memory of the past threat: something that could have disrupted her life as a young child and taken everything the family owned. He said "Judith knows about dangerous people who come to your house and take people away. She was told as a young child that her father could be grabbed at any moment by either the Gestapo or the SS – he was in great danger. So I don't know whether Judith did it consciously or not – I wouldn't want to go there – but the point is he's a jokey tiger, but he is a tiger." Kerr, however, stated more than once that the tiger represents nothing more than a tiger, and had no relevance to her upbringing. ==Foreign language editions==