Instruction on Training within Industry (TWI) will provide essential skills for supervisors and team leaders to be more effective through Job Methods (JM), Job Instruction (JI), and Job Relations (JR). JM teaches supervisors how to continuously improve the way jobs are done, JI teaches supervisors how to quickly train employees to do a job correctly, safely, and conscientiously, and JR teaches supervisors how to evaluate and take proper actions to handle and to prevent people problems. TWI was used during WWII to help quickly train the millions of people who flooded into the industrial work force for the first time.