Personal data is any information about you that may help to identify who you are. Examples of personal data include your name, your age (and date of birth), your home address, your usernames and passwords, but also the time you spend online or the place from which you access your device.
The photos and videos you take can also share details about you, your family and your friends. To protect their information, it is important to only share these photos and videos when you have the permission of the person/people in the photo/video.