sentences:  Though, as MacDonald notes, "Miss Moppet" remains in the Potter canon, and serves as a good initial approach to Potter's literature.Potter asserted her tales would one day be nursery classics, and part of the "longevity of her books comes from strategy", writes Potter biographer Ruth MacDonald.She was the first to exploit the commercial possibilities of her characters and tales; between 1903 and 1905 these included a Peter Rabbit stuffed toy, an unpublished board game, and nursery wallpaper.