Costa Rican artist born in 1956, his start in the art dates since his first school years, gaining the first Award of his life in drawing, whose theme was the portrait of Mr. Jesús Jiménez ex-president of Costa Rica in beginning of the century.

Son of Mr. Oscar Valerio Rojas and Elena Trigueros Umaña, grandson of the biologist, entomologist and naturalistic professor Manuel Valerio.

The support of his parents was vital, as well as the support of his wife Vera Virginia Arias Zúñiga in his career, thus followed in the art, the steps that his grandfather framework in alive nature.