Cristina Paredes Benítez has degrees in fine arts and in information science. She is an editor specializing in illustrated books and she has collaborated with several publishers and photo agencies. Àlex Sánchez Vidiella earned a degree in art history, specializing in contemporary art, baroque art, and entertainment art (cinema), from the University of Barcelona. He has worked as an art history teacher and as an editor and graphic editor for various publishing houses specializing in art, architecture, geographic atlases, and scientific encyclopedia. He is currently a writer and editor, working mostly on books on architecture.