Instruct: Classify Amazon reviews into positive or negative sentiment
Query: One of the worst books I have ever read

If you are an SAP consultant, this books is not for you. It may give you some superficial information on supply chain if you a SAP user, but I think one of your SAP core team IT folks may be able to teach you that in a few hours. So, don't waste your money on this book, just talk to your SAP support team if you want to understand the process, or pick up another book that would really teach you supply chain management.