Eloy Pérez Ladaga (Barcelona, 1971) has been writing about music for more than thirty years whether it be in fanzines, magazines or websites, and currently collaborates regularly as an editor for the magazine Route 66. Author of several books about rock, among his renowned works are The Blues of the French Revolution, the first biography in Spanish of Nikki Sudden as well as progressive rock from the Rock&Roll guides collection in this same editorial.
GuiBo. Guillermo Bosch (Barcelona, 1971) since the completion of his illustration studies at the Llotja School of Applied Arts, has not stopped illustrating, drawing or designing for various fanzines and numerous editorials. It is rumored that he will continue to do so until he passes away, loses his life, or which ever comes first.