In this book, the range of possibilities of spreadsheets in the field of Economics and Management, as well as in general, is highlighted in a unique way. The book is structured in such a way as to give readers the opportunity to learn how to use the recent versions 2007 and 2010 of Excel at a level that allows immediate utilization by novice users and easy adaptation by users of previous versions of Excel or other spreadsheet applications. Thus, the reader is able to quickly create effective and visually appealing applications that meet their personal and professional needs. At the same time, the authors apply the innovative practice of integration, in the corresponding chapters of theory, applications of different levels of difficulty from a wide range of fields (Economics, Business Administration, Accounting, Finance, Capital Markets, etc.), thus satisfying the needs of new students, as well as those of postgraduate students and business executives. The applications have been selected to demonstrate the ability of spreadsheet programs to support logical and qualitative decisions, beyond solving quantitative problems that are usually presented in similar manuals. The section "Answers to frequently asked questions" is also particularly useful, providing immediate support for common problems faced by Excel users. Finally, readers can "download" the examples and applications of the book from the accompanying website (www.klidarithmos.gr/excel_ecoomy) in order to be able to utilize them immediately.