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.