Miffy was created in 1955 after Bruna had been telling his one-year-old son, Sierk, stories about a little rabbit they had seen while on holiday. Miffy became a female after Bruna decided that he wanted to draw a dress and not trousers on his rabbit. Depending on the story, Miffy can range in age from being a baby to being four years old.
At first Miffy looked like a toy animal with floppy ears, but by 1963, she looked the way we see her today, a stylized form of a rabbit. Miffy is drawn in a graphic style, with minimalist black graphic lines. Bruna chooses to only use black, white, the primary colors (red, yellow and blue), green and orange. It is his use of primarily primary colors that makes Miffy instantly recognisable, and also popular with preschoolers, because of her bright and intense simplistic colors.
There are now almost 32 Miffy titles and many more for the other characters. Bruna has produced a total of 124 picture books for children. The Miffy books each contain twelve pages of story. Each page has one illustration and four lines of verse, the last word of the second line rhymes with the last of the fourth. They are written about things that children can understand, and situations they will face such as going to the hospital and going to school, and they always have a happy ending.
Today Miffy can be found in many formats, from soft corduroy Miffy toys and stationery, to bags and clothing with Miffy patterns.