The About Me slide is normally known as the slide where you present yourself to an audience. This kind of slides is common to be found in business presentations but also in other kind of presentations. Sometimes it is part of the introduction, and present at the beginning of your presentation. By adding an About Me slide you can introduce yourself to an audience and the audience can know who you are.
In an about me slide, you can include information about yourself, this may include: A photo of you, your name and profession, a brief description of your role and additional interesting facts about yourself (hobbies, interests, awards).