Bliss is a graphical language that has existed in Sweden since the 1970s. Bliss is a language of logical structure and the foundation is a set of graphical elements that combine to form a Bliss word. Bliss words are assembled into a vocabulary that is used in daily communication and/or written communications remotely. There are currently about 6000 Bliss words. The Bliss language design allows creating new words according to well defined rules for words or concepts that are not yet available. The language has its own grammar, which is expressed graphically by the so-called operators.

Blissymbolics is a semantic graphical language that is currently composed of more than 5000 authorized symbols - Bliss-characters and Bliss-words. It is a generative language that allows its users to create new Bliss-words as needed. It is used by individuals with severe speech and physical impairments around the world, but also by others for language learning and support, or just for the fascination and joy of this unique language representation.