The Opticum Font family is not just a set of fonts, it’s a maze construction kit that hides letters inside. Each inscription is a little brain-twister with variable difficulty, where the level is defined by the style. The third one is the most difficult. When you type with these fonts you fill in the printed field without spaces because characters in the fonts don’t have side bearings and the leadings are set to zero. The user turns into an artist who produces geometric abstractions containing verbal messages. Texts set with this font not only catch the eye, but hold attention for a long time depending on the font style. The third one holds it longer. Opticum was designed by Erken Kagarov and released by ParaType in 2009.