Welcome to the only guidebook series that takes a visual approach to professional-level computer topics. Open the book and you'll discover step-by-step screen shots that demonstrate over 140 key Excel programming techniques, including: assigning digital signatures to macros; setting properties for a project; assigning values to a variable; changing the properties of an object; formatting a numeric expression; processing a runtime error; saving worksheets to another file; displaying a built-in dialog box; creating custom Ribbon tabs; building and debugging add-ins; "Apply It" and "Extra" sidebars that highlight useful tips; high-resolution screen shots that demonstrate each task; succinct explanations that walk you through step by step; and two-page lessons that break big topics into bite-sized modules.