The book provides an introduction to the most relevant topics of Information and Communication Technology, by a wide-spectrum overview which starts from the basics of ICT and arrives at corporate information systems passing through Web 2.0, databases, presentation tools, collaboration tools and spreadsheets. The most technical part of the book aims to provide advanced practical skills in the use of Microsoft Excel.The authors are all lecturers for the course of Computer skills for economics at Universit Bocconi: Dario Boschetti, Alberto Clerici, Maurizio De Pra, Gabriella Grignolio, Alessandro Rezzani, Gianluca Salviotti and Marco Sampietro.