Based on the Mushroom Signals book, Mushroom Office and Roodbont Publishers developed an e-course. An interactive course you can attend on your desktop, laptop and even on your mobile phone. By reading the explanation and watching the videos you will get a lot of information about mushroom cultivation. Later on you will get questions about the matter to answer. After answering, you automatically receive feedback about your answers. On the end of the course, you will take an exam that will lead to a valuable certificate.