This comprehensive textbook covers principles and applications of forecasting in the world of commerce. It includes theory necessary for a statistics course, as well as examples, applications and cases drawn from a variety of sources. The book features: international forecasting examples and data; Box-Jenkins MARIMA and intervention analysis, artificial neural networks and modern data analytic techniques; real-world applications and facts, real-data sets, cases and problems; a time series database with 300 actual time series included on data disk; and graphical data analysis.