I think it really depends on the child. Some like novelty, some like the reassurance from a story they already know. My 4 year old seems to go through phases of

I think it really depends on the child. Some like novelty, some like the reassurance from a story they already know. My 4 year old seems to go through phases of wanting nothing but one book for a couple of weeks, then moving on to something new. Fortunately our local library has a great collection of children's books.