Spanish euro coins feature three different designs for each of the three series of coins. The minor series of 1, 2 and 5 cent coins were designed by Garcilaso Rollán, the middle series of 10, 20, and 50 cent coins by Begoña Castellanos and the two major coins feature the portrait or effigy of King Juan Carlos I of Spain designed by Luis José Díaz. All designs feature the 12 stars of the EU, the year of minting, and the word España (Spanish for Spain).
In 2010, Spain updated their national sides in order to comply with the European commission recommendations. In the €1 and €2 coins, the same portrait of king Juan Carlos I was used, but the year position was placed in the inner part of the coin. Moreover, the twelve star ring no longer contained chiseled sections. The chiseled sections were also removed from designs for the other coins.
Depiction of Spanish euro coinage (second series) (Obverse side)
Spain will start the commemorative coin series Patrimonio de la Humanidad de la UNESCO (UNESCO World Heritage) in 2010, commemorating all of Spain's UNESCO World Heritage Sites, which could continue until 2050. The order in which the coin for a specific site is issued coincides with the order in which they were declared a UNESCO World Heritage site. The coins issued are:
In Avilés, Asturias, a Spanish one-euro coin was discovered with the image of Homer Simpson, a cartoon character from the show The Simpsons, in place of King Juan Carlos I. It is not known if any more coins with the character's image have been produced.