This document summarizes different types of labor costs and methods for controlling them. It discusses direct and indirect labor, casual and out workers, leave and holiday pay, normal and abnormal idle time, and various incentive plans like Halsey, Rowan, and Taylor's differential piece rate systems. The key points are how labor can be classified, the importance of controlling labor costs, different types of workers and paid time off, causes of idle time, and incentive plans to encourage higher productivity.