This combination textbook/workbook/answerbook explains the process of Tolerance Stack-Up Analysis for assemblies using both plus and minus tolerances and geometric tolerances. It explains pertinent aspects of Geometric Dimensioning and Tolerancing and Statistical Tolerancing and teaches a logical, mathematically reliable methodology for calculating tolerance stack-ups. This text is comprehensive, yet very easy to understand and follow from lesson to lesson. It covers both worst case analysis and statistical analysis.