I loved this book! I gave it to my 3 year old niece and she loved it also. Her big sister, who is 8 reads it with her and also enjoys it. The way it brings math principles into a good story line is quite unique, and as a strong STEM supporter and scientist myself, I can't say how great it was to find this author. I will also want to thank the other reviewers and Amazon recommendations, as I found this purely via searching Amazon - the process worked perfectly. The book is very well written and the illustrations are lovely and very fun - highly recommend!