Optical illusion typeface was developed as a corporate font for design company Effactive. A cube, which is a basis of the company logo, is divided into six regular triangles to form a grid. The grid creates depth by a precise connectivity of space, and completes the illusion font which could be seen from two angles – upper left and lower right – as saturation is adapted. Based on scientific sculptural beauty, Effactive's illusion font effectively represents Effactive's brand philosophy through visual science.