Book excerpt: This festschrift in honour of Professor Jean Guichard celebrates the important theoretical and applied contributions of his writings on guidance and counselling. Regarding the structure of the volume, the book consists of three parts. The first part is related to the theoretical contributions of Jean Guichard and introduces the richness of his thought, highlighting the antecedents, assonance, conceptual collaborations, and outcomes of his theories. The second part is devoted to the many extensions of his work. The third part concerns application and provides examples of the use of 'Self-Construction' and 'Life Construction' theories in practice.