Unique book about one of the most fascinating and mysterious planets of our solar system, this beautifully illustrated volume tells the full story of Mars, delineating carefully and authoritatively the speculations and known facts of its observable behaviour. It is an intimate, leisurely, historical and up-to-date picture of the findings, hypotheses, interpretations, misinterpretations and wishful thinking that this planet has stimulated among astronomers. He offers also advice for the amateur on how to observe it best and describes its peculiarities and idio-syncracies. By foousing on Mars in such detail, yet not overburdening his text with technicalities, the author gives credit to the intelligence and interest of the reader. The perhaps can be said to have produced one of the first better surveys of a narrow aspect of science that can appeal to the more sophisticated young or older person who is interested in the actual problems faced by the scientist when he specializes.