The term "escagraph" was first used in the 1980s by Dr. Larry R. Smith to identify and describe the many forms, past and present, of writing on food and letters as food. The term is a concatenation of esca and graph.
Most forms of escagraphs today are sweet, either molded into or drawn onto the surface of the food. Cakes with "Happy Birthday" are extremely common. Heart-shaped candies with mottoes on them have been produced since about 1901 and are often shared at Valentine's Day. Many chocolate bars bear the name of their maker imprinted on their surface.
From alphabet cookies to cereal to pasta, letters and moveable type are still common today. Throughout the western world, cookies shaped as letters are made both as edible toys and ostensibly to help children learn their letters. Many manufacturers provide alphabet pasta letters in both ready-to-eat and dry forms.