Understanding Data Mining and Warehousing is a knowledge discovery reference book that covers all aspects of data mining and warehousing in efficient and easily understandable manner. It presents fundamental concepts and covers a variety of topics such as data mining, clustering, sequential pattern mining and data warehousing. It also addresses various data mining tools and its real time applications. This book reveals how the architectures and technologies work together to provide value to the learners. This book is intended for a beginner who is interested and seeks information on data mining and warehousing.