"Science tends to generalize, and generaliza tions mean simplifications . . . . And generaliza tions are also more satisfying to the mind than details. Of course, details and generalizations must be in proper balance: Generalizations can be reached only from details, while it is the generalization which gives value and interest to the detail:' . . . (A. Szent-Gyorgy, Science 1964) The first edition of this book, published in German as Tabak abhiingigkeit in 2001, was prompted by the fact that no single volume was available in Germany or elsewhere summarising the adverse repercussions of cigarette smoking on human health. As far as my own research was able to ascertain, the last comprehensive work dealing with this subject was writ ten in Germany by the Dresden internist, F. Lickint, whose Tabak und Organismus was published in 1939 by the Hip pokrates-Verlag. All subsequent monographs in this field have tended to focus on detailed aspects, and there has been no shortage of publications on subjects such as how smokers can quit smoking, healthy eating for smokers etc. Friends and colleagues abroad have urged me to prepare an English language version of Tabakabhiingigkeit. In gladly complying with this suggestion, I have intentionally prepared an up dated and slightly enlarged new edition, taking account of the rapidly proliferating literature on the subject up to the start of 2002. The harmful sequelae of smoking are played down by politicians in many industrialised countries, including Ger many.