I have been an affiliate of Better World Books for a while now because I like the idea of doing my part for the environment and also to improve literacy for underprivileged children. I have not been blogging about them for a while and here is a recent chat with a reader. Reader: I went to better world books to get my books. but i only received 2 out of 6 books i bought. to me it's ok since i got them for much cheaper than getting them new. but since u r still endorsing this website on your blog, thought u might want to know. maybe they are not as reliable since you first endorse them... AK: Actually, it happened to me once before. You just have to write to them and tell them you did not receive your books and they will send you replacements ......