Definition: E-learning (or elearning) is online training. The aim is to use the Internet to improve the quality of learning and facilitate access to knowledge. The participant is alone and has the course and exercises, then an assessment of his knowledge. He has paid registration fees in advance and conducts his training on-line on his own. There is no virtual classroom. Some of these e-learning courses can be regulatory, certifying or diploma-based, designed by approved training organizations or higher education establishments. Inexpensive, this method is widely used in companies for the continuous training of employees. This new access to training responds to professional or personal requirements: academic and professional knowledge becomes accessible 24 hours a day, 24 days a week, anywhere without having to travel. It is then possible to train online with elearning simply and quickly. This learning method requires greater learner autonomy, and therefore the need for motivation to follow the training as well as the need to meet optimal material conditions through internet access, a digital device (computer, tablet, smartphone) and a workspace to isolate yourself (at home or in the premises of your employer). The content of these distance learning courses is designed using training engineering methods: variety of formats (text, video, podcast, etc.), fun and interactive modules, quizzes, etc. E-learning is accessible to people in professional retraining or simply with a view to optimizing skills through self-training. Registration fees for these courses can be financed by companies for their employees, by Pôle Emploi for job seekers, the Personal Training Account (CPF) for each employee, etc.