A Mighty Girl

"The world's largest collection of books, toys and movies for smart, confident, and courageous girls. "  (New or used.)
Shop by product type or famous character. This is also a great place to shop for boys! (Not only are the products also suitable for boys, it's my personal opinion that boys ought to have lots of books with female heroes, also.) 
There is a section for earth-friendly books.

                                                                                 Image from A Mighty Girl