Any person who has not even directly encountered, but has heard about the problem of alcoholism, is interested in the question: “How to prevent a close relative from developing an addiction to alcohol?” This may seem surprising, but there is a clear, unambiguous answer to it: the main thing is prevention. This book is addressed primarily to relatives and friends of people who are viciously dependent on alcoholic beverages. If reading it helps someone protect themselves, or save a friend or relative from alcohol, then our work was not in vain.