If it wasn’t for the ending this would be a 5.  :). The ending is actually funny, but I can’t help myself.  This book is simple and so are the illustrations but that is what makes it perfect.  We want a dog?  What type of dog do you want?  The book describes various types in perfect rhyme and cadence, and it just works.  I would use this book every time we did a pet story time.  Every time!.