Gordon Du has been working in the Information Technology sector for over 30 years now. He is passionate about helping others whenever he can. Being the top contributor in the SAP Community Network since 2008, he has helped thousands of users to utilize ERP package more efficiently and solve their problems. He has broad knowledge in all aspects of ERP, especially for SAP.

Gordon has worked and trained in Canada, China, Singapore, and the USA. In China, he was the first person to successfully implement an international ERP software package in a domestic company. He is the author of Mastering SQL Queries for SAP Business One, Packt Publishing.

Vladimir Mikhaylenko is a SAP developer with more than five years of development experience in various SAP modules including, but not limited to, Financials, Material Management, Sales, and Distribution. At present, Vladimir works with SAP Globalization Services in the Russian Federation, and participates in development projects for the localization of SAP Human Capital Management for CIS and Ukraine.

Eric Wildenstein is a SAP techno-functional independent consultant, and has been working on ERP implementations for blue chip companies in Western Europe and Northern Africa regions since 1997. He mainly specializes in ABAP object-oriented programming, NetWeaver XI/PI/AIF, and SAP Business Workflow, providing technical expertise across the core business modules of SAP. Prior to becoming self-employed in 2000, he worked as an in-house programmer analyst for PricewaterhouseCoopers, UK, and Andersen Consulting, France, on both SAP R/3 and C/S architectures.

Eric has already reviewed several SAP books, including the very informative SAP ABAP Advanced Cookbook, Rehan Zaidi, Packt Publishing.