Online book stores?

Hi fellow C.M lovers. I am new here, enjoying all the info I am learning from this forum. I have two little girls, five and two. We live in Nigeria Africa, fallowing my husband (gladly) for work. I need to get some books together to send with our shipment this summer, for my little lady. Do any of you know where a good online book store would be. I want to be able to look at the books for sale. Unlike amazon or B&N where you search for the book of interest. I need to gather a lot of books for the whole next year…no book stores here in Nigeria. Any thing that comes to mind would be wonderful.

Have a good day

Rosaleen