This work presents a step-by-step program of gradual withdrawal from smoking. The great advantage of this gradual approach over the 'cold turkey' approach is that it avoids precipitating the symptoms of nicotine withdrawal. The discomfort of such withdrawal symptoms is one of the strong factors undermining smoking-cessation plans. The method herein advocated is based upon well-established learning principles. This book promotes an understanding of these principles and their application in a self-behavior modification program.