This chapter talks about topics related to incentives, rewards, reinforcers, and punishers using the operant-conditioning framework. Rewards, incentives, and reinforcers are used interchangeably in daily life, but they are quite distinct, and understanding their difference can help one understand the behaviors they see versus the behaviors one expected. When a certain behavior needs to be increased, reinforcers are commonly implemented to get that behavior going, especially simple behaviors. Contracts for athletes, coaches, chief executive officers (CEOs), and many other individuals are set up with incentives. In many companies, sales representatives have certain monetary goals they must reach to receive a bonus. Research in the late 1970s and the 1980s began to indicate serious issues with using extrinsic reinforcers; specifically, that reinforced behaviors that are already being performed decrease engagement in that activity in the future. Praise is part of the extrinsic-reinforcement world.