This handbook has been written in the framework of European Schoolnet's Games in Schools project which began in January 2008 and ended in June 2009. The project's aim was to analyse the current situation in eight countries (Austria, Denmark, France, Italy, Lithuania, the Netherlands, Spain and UK) with regard to games based learning. It is composed of various elements, including a synthesis and final report based on the results of a Europe-wide teachers' survey, case studies and interviews with relevant national policy makers, researchers and experts, as well as an online community of practice and finally the present teachers' handbook. The Games in Schools blog provides more information regarding European Schoolnet's project, and also provides links to the study's reports (http://games.eun.org). This handbook is intended for teachers interested in using digital games in their lessons. It provides the necessary information to understand the educational benefits of digital games and to learn how to use them as educational and motivational resources. After reading this handbook, you should be able to make informed decisions on the choice and use of digital games in the classroom, and obtain all the benefits digital games can offer. This handbook is a practical guide aimed at providing you with theoretical and practical information. It is an introduction to the educational use of digital games and it provides references to useful resources such as articles, websites and books where you can find additional information.