I used this book with my daughter when she was three, as she would have to start school three weeks after her fourth birthday. I was worried, since some studies in the UK had said that summer babies did not do as well as the rest during the first years in school and many were behind their classmates during their entire school years. Since English is not my mother tongue,I was not sure if I could I help her with the pronunciation of some letters and blends. So I decided to try The Reading Lesson. We worked slowly with the book. As she gained more skill and confidence, we went faster. Right now we are in the Spring term and I am happy to report that my daughter is the best reader and writer of her reception class. She is two levels above the bigger kids and she has developed a genuine love for books!