Bruno is ten and has noticed that his body is changing. He will soon enter puberty like his sister Mía. He discovers what changes a boy's body undergoes during puberty and learns everything about the male reproductive system. Join him on his adventure of growing up! Written by a paediatric endocrinologist, 'Bruno Grows Up' is a book to facilitate talking about the changes that take place during male puberty as part of the normal process of adolescence and which underlines the importance of maintaining healthy habits during this period of great changes. 'Bruno Grows Up' is the brother book to 'Mía Grows Up', which won various prizes in 2016-17 including the premio Crítica Serra d’Or and the premio Jaume Aiguader i Miró (for health information and education).