If you are looking to purchase or reference the latest version, it is typically published by (Rheinwerk Verlag) and is widely used in academic settings and corporate training.
The (Sales Practice Handbook with SAP), authored by experts like Jochen Scheibler , Tanja Maurer , and Wolfgang Schuberth , is a cornerstone resource for professionals working within the SAP Sales and Distribution (SD) module. Core Focus of the Handbook
: Focusing on how a business actually sells products, rather than just which buttons to click.