This book is an introduction to the nature of geography. There are detailed sections on content, methods and purposes and an attempt is made to distinguish progress from those changes which are merely fashion and those which result in genuine progress. One of these, resulting partly from the adoption of quantitative techniques, is the improvement in the accuracy and the type of explanation which the geographer is now able to give. The new techniques have also helped in the bringing about of profound changes in geographical laws, the use of models and even the relevance of determinism.