Help on the pictograms section

EPS
(Encapsulated PostScript)
The file format is based on a subset of the PostScript language and is intended for the exchange of graphics data between different applications. EPS format was created by Adobe and served as a basis for creating earlier versions of the Adobe Illustrator format.

Pictogram
(from latin pictus — draw and greek γράμμα; — record)
A simplified drawing that serves as a generally accepted designation of an object, action, or event.