Reviewed by Sami F. (age 8)
I liked the book because I like to whistle. I liked Willie, Peter's dog, because he is cute. This was a great book because Peter does not give up trying to whistle. My favorite part is when he practiced whistling. Peter reminds me of my cousin, Dylan, because he looks like the character.
I highly recommend this fantastic book to people that can't whistle because they might learn how to whistle. People who do know how to whistle should read this book, too, because there are great pictures. I think people of all ages should read this book!