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 allow you to learn at your own pace, making it easier to fit education into your busy life. You can access lessons, videos, and quizzes from the comfort of your home. Many online courses are offered by universities and platforms like Coursera or Udemy. Some are free, while others require a fee. With online courses, you can gain new skills, earn certificates, and even advance your career without needing to attend a physical classroom.