Ecommerce course

I wanted to take the ecommerce course this semester at my local community college as one of the last of the required courses toward my web design certificate but I can’t get transportation to and from school this semester. I’m not too worried because the things they teach you in the school I go to are frequently outdated and I’m going more for the certificate and not the outdated ways they teach me. I’ve learned more in the year and a half from this forum and other places around the net about how to do things the right way than I have from school. My question is do any of you know of a book or books that can get me started learning ecommerce now instead of waiting 4 months to start next semester?