A series of 3 photos is called a set, collection, anthology, compilation, congeries, hoard, mass, pile, stockpile or stash. It is important to create a consistent style throughout your photo series as this will make it easier for viewers to connect the images together. This can be achieved by using the same filter or presets, as well as ensuring that each image has been shot in the same light and is edited to the same style.
Photographer Louis Daguerre created what is believed to be the first photograph with people in 1839. It shows the short-lived president John Quincy Adams and his family.