Workbook Residential Design Using Chief Architect X7 is currently available at Amazon.com. This workbook is a companion book to Residential Design Using Chief Architect X7. Additional exercises and projects enhance your learning process in using the Chief Architect X7 CAD and home design software. Practice the skills in the commands and concepts covered in the corresponding chapters of the main book. The Workbook includes new tools and concepts to further enhance your ability to create professional home designs.