I have read the book Supply Chain Management by sunil chopra & Peter Meindl .The book has a good explanation of the four drivers of SCM ie Inventory,Transportation,Facilities & Information.It goes on to develop each of these drivers in detail. The main attaraction of the book is its detailed treatment of SCM in Ecommerce enabled organisations like DELL,PEAPOD,AMAZON etc who have used internet to drive their commerce.