I purchased this book for my niece along with a telescope for Christmas. She is 7 years old. She specifically called me to tell me that she "LOVES" the book. That is not something you hear from 7 year olds so I was extremely pleased. My sister tells me that my niece only needs help with a few words but wont put the book down and has been reading it constantly since Christmas (three days ago). its been snowing so no telescope set up yet, but my niece even read some of the book to me and I couldn't have been happier. I purchased this book because the pictures where outstanding and I wanted something that was visually pleasing as well as educational for my niece. I will be purchasing several other Smithsonian books like this for her. Outstanding book - worth every penny.