Languages of Catalonia
There are four languages with official status in Catalonia (an autonomous community of Spain): Catalan; Spanish- which is official throughout Spain; Aranese, a dialect of Occitan spoken in the Aran Valley; and Catalan Sign Language. Many other languages are spoken in Catalonia as a result of recent immigration from all over the world.
Catalan manual alphabet
The Catalan manual alphabet is used in Catalan Sign Language but wasn't officially recognized as one of Catalonia's official languages until 3 June 2010 when Law 17/2010 of the Catalan sign language (LSC) was approved by the government. The Catalan manual alphabet is single-handed and is extremely similar to the Spanish manual alphabet. As a result, people who use Spanish Sign Language can understand approximately up to 80% of the Catalan sign language.