In the last thirty years experimental Economics has become a major area of research in economics. Its basic premise is that as in all sciences, good economic theories can be testable, as well as through statistical and econometric data analysis also in a controlled laboratory setting. In fact, some argue that certain economic theories (e.g., theories of refinement in games) can only be tested experimentally. This course will be an introduction to the methodology of experimental economics and its application to specific topics, such as decision making under uncertainty, trust games, public goods, etc.