This book is a reference and information publication in which an attempt is made to summarize numerous domestic and foreign works on the theory and practice of forecasting, published over the past 10-15 years. It contains information about terminology, methods and organization of forecast developments, about the main areas of forecasting, bibliographic data. It highlights the stages of development of prognostics as a science, gives a classification of forecasts, forecasting tools, provides information about official and public organizations in the world conducting research on prognostic problems.