Do you wonder why your child wants you to read the same book again and again? Aren't they tired of it? According to Saroj Nadharni Ghoting and Pamela Martin-Diaz in their book, Early Literacy Storytimes @ your library, “When a child wants a book read for the fiftieth time, the book is becoming part of his or her memory and him- or herself. Repetition is not just something they want; it is something they need in order to learn.” And according to Jim Trelease in The Read-Aloud Handbook, "Prior to age two, repeated readings of fewer books is better than a huge collection read infrequently." 

Reading and heading the same story over and over again provides the reinforcement that children need for learning language. The repetitive process is part of the language immersion process.