Online courses are educational programs that you can take over the internet. They cover a wide range of subjects, from mathematics to computer programming and even art history. These courses often include videos, quizzes, and interactive assignments, making learning flexible and accessible for everyone, regardless of their location or schedule. Many platforms, like Coursera and Udemy, offer online courses created by universities and industry experts. This allows learners to gain new skills or enhance their knowledge at their own pace. Whether you're looking to advance your career or explore a new hobby, online courses provide a convenient way to learn from the comfort of your home.