I love it! I was invited to be the Mystery Reader in my grandson's kindergarten class last year. I researched books and found this one to be perfect. We have a big picture window that we have always used as our Goodbye Window, making silly faces and blowing kisses, etc. This year in first grade, my grandson personally invited me to read to his class and said that I HAD TO read this book again! It may be a geared for younger students, but with this request, how could I say no?! I will also read it to my 4-year-old granddaughter's class, and it should be perfect for them.