Embossed letters, which are among the most trendy works in today's outdoor advertising, are produced with many types of materials and different lighting options. Many different works can be done with stainless steel, aluminum, plexiglass, decota, wood-derived materials in embossed letters. The point to be considered in such works is that the letter spacings should be adjusted proportionally according to your viewing angle since the texts will be embossed, and in this proportion, attention should be paid to the light that will come out from the sides of the letters, especially in illuminated letters. Otherwise, the letter visibility will not be good.