Today is World Photography Day. In this post, together with our heroes Mia and Lili, we want to show children the origins of every photograph they take today: from Ibn al-Haytham’s darkroom; Niépce’s first photograph—which turns two hundred years old this year; John Herschel’s term “drawing with light”; Talbot’s negative; the first photography book by botanist Anna Atkins; the Kodak camera that brought photography out onto the streets; and the first digital camera from 1975, which weighed four kilograms.

Next, we discuss what matters most to us: why photography is a form of testimony rather than just a decoration; how it develops coordination and fine motor skills in children; how it trains the eye to see; and how it gives children a second language for self-expression. Finally, we offer some tips for the young photographer.