Hugh Gunn
Measuring Effective Power
in Leadership
13 equations. 22 variables. One score.
World leaders past and present — placed on a single scale.
The equations will not save you. But ignoring them will destroy you.
The Leaderboard
World leaders scored against the 13 Equations of Effective Power. Past and present. Every domain.
Effective Power
Measuring the Power of Leadership across 25 Centuries
Top Leaders by Domain
View all ->Explore by Category
Who do you lead like?
Score any leader — historical or contemporary — using the same 13 equations.
Open the Leaderment BoardThe Book
The Leaderment Codex
13 Equations of Effective Power, Leadership, and Management
Most leadership books are written by people who have never been responsible for anything that could sink, explode or catch fire.
This book is for you if:
- You’ve done the courses and none of it stuck.
- You think analytically and distrust buzzwords that mean nothing.
- You’ve watched someone fail upward.
- You’ve been hired to lead but expected to manage.
- You’ve been given the title but not the resources.
- You’ve been passed over and don’t know why.
- You teach leadership or manage leaders.
- You wonder why Mr Charisma has just been promoted when you can do better.
The 13 Equations of Effective Power
13 equations built from 22 variables — from Chaos and Administrative Impotence to Trust, Authority, and Effective Power. A mathematical model for what leadership actually produces.
Explore the Equations →The 22 Variables of Leadership
Every leader scored across 22 variables and multiple career phases. Filter by domain, era, and band. Churchill, Mandela, Jobs, Capone — the equations do not distinguish.
View the Leaderboard →Your Scores
Registered users can score leaders, suggest new profiles, and see how their assessments compare to the canonical scores. Leadership analysis as a community exercise.
Score a Leader →Speaking
Leadership keynotes and workshops
Hugh Gunn is available for keynote speaking, leadership workshops, and panel appearances — drawing on the Leaderment framework, a career spanning 14 years as a Royal Naval Officer, 20 years in IT executive and sales leadership, and entrepreneurship. Topics include Effective Power, the Chaos Tax, and the say-do gap in leadership.
Enquire about Speaking →About Hugh Gunn
Hugh Gunn spent 14 years in the Royal Navy — one of very few people to begin as a mechanic and reach commissioned engineering officer rank. Twenty years in IT followed, ending as VP Sales EMEA. He then founded his own business.
The Leaderment Codex is the product of that career — forty-four years of watching leaders succeed and fail under pressure, distilled into a mathematical framework that names what most leadership writing only gestures at.
Get in Touch →