羊依军

Yang Yijun is an author whose name appears mainly as the credited writer of Chinese Excel-related computer books; reliable public information about him is limited. Judging from the three titles held in this database, his writing focuses on the practical use of spreadsheet software, covering both charting and data analysis. He has written a basic volume for beginners and an advanced volume for more experienced users of an Excel chart guide, as well as a separate book on data analysis methods, techniques, and cases. These works are commonly classified under software learning and computer basics. They emphasize step-by-step operations and worked examples, making them suitable for readers who want to learn Excel charting and data handling systematically. The series structure progresses from basic to advanced levels, reflecting a practical, hands-on approach to instructional writing. Details of his life and professional background are not available in public sources.