Skype is a free communication software that allows users to make calls, send messages, and do video conferencing online. It was created in 2003 and later acquired by Microsoft. Skype requires an internet connection, speakers, microphone, and compatible operating system. It can be used for personal communication, remote teaching of groups via screen sharing, tutoring, and more. Setting up an account and installing the software is straightforward. Potential advantages for education include practicing English in real time, cultural sharing, and increased student engagement and confidence. Disadvantages may include issues with technology and time zone differences.