Mustapha Mond's Department of Propaganda is the way of controlling Brave New World.In this world, life is controlled from the day you were created till the day you die. Each person is scientifically made and programmed to live within a certain class and job. Mainly this is programmed through conditioning like methods of hypnopedia, soma, shopping, and fun activities. Hypnopedia is simply learning while sleeping. It is listening to a recording to make one behave and believe in a certain way. Soma on the other hand is a drug that everyone takes to stay happy and to fix all desires. Mustapha's theory of propaganda is to make a controlled and smoothed running world to keep everyone happy.