The course contains 8 hours of video teaching. So if you watch it from start to finish, that’s how long it would take to complete, plus 5-10 minutes per module for quizzes. If you really want to dig in and understand the content, we recommend applying the old college rule: 2 hours of studying for every 1 hour of teaching (24 hours total). If you take full advantage of the resources section and complete the suggested homework of making ferments and herbal recipes, and dig the Links & Resources pdf, you could add hours onto your study and practice of herbalism.