Today, one of the greatest educational challenges facing families and teachers is the relationship adolescents have with screens. The digital world is part of their lives, and it is where they also live their adolescence, whether we like it or not. Jaume Funes, psychologist, educator, and journalist, author of several books—including the best-selling Love when I least deserve it... because that's when I need it most. (2018) – returns with Not without my cell phone (2025). A thought-provoking book on how to educate adolescents in the digital world and offers useful strategies for parents and teachers, always prioritizing educational support over prohibition.

Psychologist and writer Jaume Funes and Mari Carmen have been together their entire lives. They met when they were 17 and 21 and married when they were 21 and 26, in 1973, "the same week Carrero Blanco was blown up," Jaume recalls. They were married by Juan Garcia Nieto, "a Jesuit priest and worker who was a leading figure in the social struggle in Cornellà," with whom both Jaume and Mari Carmen had collaborated in more or less clandestine activities since they were teenagers, and through whom they met. "Back then, we didn't have adolescence; we studied and worked. We were children of working-class families, and we both inherited the desire to know more and learn more," explains the psychologist.