Graph APIs will be APIs for general use by access basic user information, for example, to post images or post messages, view profiles, as well as a list of friends, etc.
Graph APIs are APIs for common use by people to access the information of users, for example, post a photo or post. Profile visits Including friends list, etc.
Graph APIs is APIs for user basically reach basic information of users, for example, to post a picture or post messages. The profiles as well as the list of friends.