Using real-world examples in the context of the shop floor, this book addresses statistical process control through a non-mathematical, step-by-step explanation of the process capability study. It enables manufacturing personnel to understand how to recover a significant return on their investment from statistical process control. Machine operators and supervisors will better understand how they can communicate their process knowledge to management. Managers will then better understand the limitations of the process as it exists and will have a simple tool for managing process improvement.