This is probably the most up-to-date overview book on SAP there is (as of mid-2006), unfortunately it's much more useful for those who will be day-to-day end users of SAP than it is for implementors, administrators, or auditors. What you need to know to begin to navigate the SAP GUIs is covered here, but if you don't or haven't actually worked with a large company's supply chain or customer relationship management systems this information isn't going to do you a lot of good--it's about SAP (specifically using the front-end, for the most part), not ERP/CRM. If you're going to be using SAP day-to-day this book may help you get started more quickly, especially if you can follow along on your computer while reading.

If you're going to be implementing, administrating, or auditing/securing SAP, you won't get much out of this book. If you're serious about learning SAP your best bet, unfortunately, is to take an instructor-led, hands-on course.

If you are a new SAP user, you should definetely read this book. It highlights the SAP basics, but if you are looking for more advanced and technical explanations you should search for other books.

If your willing to wade through the different focus, you will find this a very useful book. It is by no means complete but nonetheless highlights how SAP has evolbved from R/3 to mySAP ERP and Business Suite, and ties in and explains Netweaver and where ECC fits in. The authors jump around between user, business and technical topics and theres less screen images than the first edition. Overall it's a great buy though.