This book, thoughtfully edited by Maria Lyra and Marina Pinheiro, acknowledges the fruitful discourse between Jaan Valsiner and several generations of Brazilian researchers over the last several decades. The backbone of this work is built on three of Dr. Valsiner’s previous texts, considered to be milestones of the most advanced reflections in the field of Cultural Psychology of Dynamic Semiosis, and the works of respondents who commented and expanded Dr. Valsiner’s thoughts. At the soul of this volume is a discussion of the special nature of what Cultural Psychology is, beyong the dialogical formation of these dedicated young scholars commenting on the three foundational papers