For courses in Excel for Windows. Now Microsoft Certified! Tim Duffy's Microsoft Excel 97�, Blue Ribbon Edition integrate textual explanation and hands-on exercises, providing a balance between real-world practice and conceptual understanding. The Tim Duffy series is written by an experienced author and instructor with a focus on encouraging students to think more critically and take more initiative in solving problems. This innovative, highly visual, project-based text features hands-on exercises that are built around a running case study. Tim Duffy's Common Features of Office 97 gives an overview of the features common to all Office 97 applications familiarizing students with how an integrated software applications suite is used.