The application of computers has revolutionized application of methods and techniques in geography. Dominant economies today have as their major activities the search, collection, processing, and distribution of information in order to provide services to tourists. Airlines, Travel Agencies, Hotels, Car Rental companies increasingly adopt computers to enhance service, satisfy tourist, shut out competition, improve business process, and make sustainable profit. Diffusion of the innovations in ICT has become quicker than ever before thanks to a lowering of the barriers to adoption like lower costs, open standards, and the user-friendly and high potential internet based tools. This book talks about various CRSs used in aviation and travel industry worldwide and the students will find it useful and helpful.The author has incorporated elements of curricula used by a large number of universities located in different parts of the world and hence the book is quite comprehensive in its content.Another merit of this book is the inclusion of examples. Happy Reading!