The Areal font was developed as a conceptual typeface within this project, in which an experimental type had as its main feature that every character of the font consists of the same area. That means every letter or sign has effectively the same amount of blackness. Above all the analytic project proofs the durability of type in contempt of using such a strict criterion. All the results were published in a three-piece series of books containing the theoretical study A = Z #1; The Effect of Design on the Substance of Type (On the Essence of Writing), A = Z #2; Areal — A Typeface with one single Area, A = Z #3; How and Why this Font.