Eco is a personal development of the lettering used in a 1970s logo of a little known company named Ageco. The only letters faithful to the logo's ones are E, C and O.

Senkron is composed of "normal" and a "blok" styles. Senkron ("normal") was designed as a pure and modern neo grotesk font. The anatomy of the letters are designed to achieve an equal text color. For this purpose, the legs of the letters “R” and "K" are designed with a vertical angle to prevent the white space that would occur in the middle of these letters. In the minuscule, the characteristic features of letters such as ‘a’, ‘l’, ‘t’ are concretized and legibility is supported in the text. Considerable attention has been paid to the harmony between the anatomical structures of the letters and the diacritical mark’s structure. Senkron Blok is arranged for situations which have diacritical marks overflow to leadings of the headline and headline typographical color is affected negatively from this situation. For this purpose, majuscule diacritical letters are resolved within the letter height. However, when this is done, new forms are obtained by integrated diacritical marks with letters instead of directly merging them. The idea behind this approach is to preserve the typographic value of diacritical marks and emphasize the semantic value of diacritical letters. 82 letters have been redesigned in this way.