Caillou (pronounced: Kayu) is a Canadian animated series adapted from the books by author Christine L'Heureux and illustrator Hélène Desputaux. The show follows the daily life and relationships of a 4-year-old boy named Caillou. Originally in French, the series has been translated into various languages and aired in many countries, from America to Germany, and from England to Turkey. The word Caillou means "pebble" in French and is also used to refer to a hairless head. The character Caillou in the series is bald. The producers have addressed questions about this topic on their official website, stating that the character's age in the book is younger than in the animated series, and that babies do not have thick hair. In the adaptation, the original concept has been preserved, and thus, despite his age increase, the character Caillou is portrayed as hairless on television.
