Articles included here were curated from scholarly papers contributed by academics and recognized practitioners of Action Inquiry and the GLP

Harvard Business Review Article 

Seven Transformations of Leadership

William R. Torbert and David Rooke
Harvard Business Review

In 2012, HBR chose this article as one of its 10 best leadership articles ever for its new book on the Top Ten Leadership MUST READS. For more references from Bill Torbert

Bill followed up this successful article with a 2020 update here


Brief Comparison of Five Developmental Measures: the WUSCT, the SOI, the LDP, the Map and the GLP

William R. Torbert © 2019

Principal, Action Inquiry Associates Leadership Professor Emeritus, Boston College

Inviting Vertical Development into Coaching: Interview with Elaine Herdman-Barker & Bill Torbert

Please click HERE to listen to the podcast hosted by GLA’s Partner, Danny Morris. 

Imperfect Beauty: Hierarchy and Fluidity in Leadership Development

Elaine Herdman-Barker and Nancy Charlotte Wallis
Volume 6, Issue 1:
Challenging Organisations and Society. Reflective Hybrids
Editors: Nancy Wallis and Maria Spindler

For more references from Elaine Herdman-Barker and Dr. Nancy Wallis

Images of Leadership Development (through TRANSFORMATIONS™)

Elaine Herdman-Barker 

For more references from Elaine Herdman-Barker

GLA’s Response to Dave Snowden’s critique on Vertical Adult Development Theory

Editors: William R. Torbert & Elaine Herdman-Barker, 2022. Global Leadership Associates Press. 

For more references from William R. Torbert and Elaine Herdman-Barker

Clearing Obstacles in Action Inquiry: An Exercise to Expand a Person’s Repertoire of Action 

Elaine Herdman-Barker and Aftab Erfan

Sage Handbook of Action. Research (Third Edition, 2015).

For more references from Elaine Herdman-Barker

The Art and Science of Vertical Development

The Art and Science of Vertical Development Charles J. Palus, John B. McGuire, Sarah Stawiski, William R. Torbert – Chapter 3 Maturing Leadership – The Art & Science of Vertical Leadership