
Three Decades of Leadership Wisdom
The Authors
Together, these three coaching titans have accumulated over 30,000 hours guiding leaders and teams across diverse industries and global markets. Their collective wisdom—captured in multiple books published by Eyrolles in France—now finds its most powerful expression in Unlocking Success. Originally published in French by Eyrolles Paris in 2021 as Coaching de managers et de dirigeants (beautifully translated by Chiara Gasperoni), this essential leadership resource distills decades of executive coaching expertise into actionable strategies for today's most challenging leadership scenarios.

Paul Delahaie
Transforming Leadership Through Strategic Vision
As co-founder of Variations International and Activision Coaching Institute, Paul has spent over two decades in the trenches with top executives worldwide. A Professional Certified Coach who's shaped the leadership journeys of countless C-suite executives, Paul brings academic rigor to practical leadership as a professor at HEC Paris Executive Education. His insights have transformed boardrooms across industries, making him a sought-after voice in leadership development.
Anna Gallotti
Pioneering the Future of Coaching
The visionary force behind Share Global Coaching's transatlantic success, Anna's twenty five-year coaching journey spans continents and disciplines. As a Master Certified Coach and founder of the Group Coaching Institute, she's trained elite coaches while pushing the boundaries of the profession itself. Her twelve years as an ICF examiner and leadership of the Thought Leadership Institute have positioned her at the forefront of coaching innovation—now continued through her groundbreaking work as co-chair of ICF's Coaching & AI taskforce.


Catherine Tanneau
The Coaching Authority With Global Impact
With an astounding 10,000+ hours guiding executives through their most pivotal challenges, Catherine's mastery of leadership transformation is unmatched. As Master Certified Coach, CEO of Variations International, and former chair of the ICF Global Board, Catherine has redefined executive coaching across three continents. Her dual expertise as certified non-executive board director and HEC Paris leadership professor allows her to bridge corporate governance with leadership development in unprecedented ways.