This is the first book that gives professionals the specialized tools and techniques they need to write more effective worksheets.Thousands of managers, accountants, and other business professionals are called upon to design and implement large spreadsheets that must be used by multiple users over long periods of time. Learn better ways to get input from users, prevent errors and incorrect calculations -- and make sure your spreadsheets actually support decision-making, instead of just delivering incoherent piles of numbers. Discover macro techniques that help you streamline both development and usage of spreadsheets. Learn systematic quality control techniques that are invaluable in the corporate environment.Professional spreadsheet users.