'My first book was yellow. On its cover was a bumblebee and the words ‘All the best things in the world begin with a b.’ I look at the words, and the words make sense, and suddenly the book springs into story. All these years later I can open that book’s hard yellow covers and I am six years old, alone at night, and making a discovery that will mean I am never alone again. There is a boy, there is a butterfly, and there is a bumblebee. They all begin with a b, they are all found in the book, and they are all the best things in the world.' (Introduction)