Spain
As a percentage of the general population of all Spain, Spanish is natively spoken by 74%, Catalan by 17%, Galician by 7% and Basque by 2% of all Spaniards. Occitan is spoken by less than 5,000 people, only in the small region of "Val d'Aran".
Other Romance minority languages, though not official, have special recognition, such as the Astur-Leonese language ("asturianu", "bable" or "llionés") and Aragonese ("aragonés") in Aragon.
The Story of Spanish
The Story of Spanish is a non-fiction book written by Jean-Benoît Nadeau and Julie Barlow that charts the origins of the Spanish language. The 496-page book published by St. Martin’s Press (May 7, 2013), explains how the Spanish language evolved from a tongue spoken by a remote tribe of farmers in northern Spain to become one of the world’s most spoken languages.