Rafael Yuste (Zaragoza, 1968) has a degree in geography and history, specialising in the history of art. He has worked as a cultural manager and has curated exhibitions of heritage and contemporary art, and he has also written guides and articles in this field. To date he has published a book of poems "Trilogía de historia natural" (Trilogy of natural history) and since 2004 he has been editor in chief at Prames.

María Felices (Zaragoza, 1976) is an illustrator and graphic designer. For more than two decades she has worked in a wide range of jobs for Prames’s music department: exhibitions, museums, performance centres, websites, and apps. Her personal projects include the picture book “Silván y los árboles parlantes” (Silván and the talking trees, 2020), and poster design in which her illustration skills play a huge part and exhibiting her screen-prints.