Open Courses are educational programs that are freely accessible to anyone interested in learning. They cover a wide range of subjects, from computer science to art history, and are often offered by universities or online platforms. These courses allow learners to study at their own pace without the need for formal enrollment or tuition fees. Many Open Courses provide video lectures, reading materials, and assignments, enabling participants to gain knowledge and skills in various fields. Popular platforms for Open Courses include Coursera, edX, and Khan Academy, which collaborate with institutions like Harvard University and MIT to deliver high-quality content.