Saeculum Leadership® Body of Knowledge (SLBoK)
Peter F. Gallagher’s comprehensive 20‑volume body of work (1–10, A–E, and I–V) defines the generational, behavioural, organisational, and philosophical foundations of Saeculum Leadership®. It provides the frameworks, doctrines, and execution systems required to lead, transform, and sustain change in an era of structural disruption and institutional fragility.
The integrated architecture is expressed through the following four‑pillar structure.
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SLBoK – Operating System
Leadership of Change® Series (Volumes 1–7): The behavioural and organisational execution system for leadership, culture, adoption, and transformation.
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SLBoK – Critique
The OCM Critique Trilogy (Volumes 8–10): A behavioural and systemic analysis of failed organisational change, exposing patterns of charade, insanity, and dilettante behaviour.
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SLBoK – Competency Development
Leadership of Change® Capability Series (Volumes A–E): Experiential learning, business simulations, and applied workshops that build leadership capability and organisational change maturity.
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SLBoK – Principles
Saeculum Leadership® Canon (Volumes I–V): The generational and philosophical foundations of disciplined leadership in the Saeculum era.
Applicability Across Sectors: Together, these works serve governments, public institutions, universities, boards, CEOs, senior leadership teams, MBA programmes, and professionals seeking to understand, lead, and transform organisations and societies during a period of generational upheaval, behavioural decline, and structural change.
SLBoK – Operating System - Foundational Volumes (1–3)
Fables, pocket guides, and handbooks introducing the a2B Change Management Framework® (a2BCMF®), including models, assessments, tools, templates, and checklists for structured implementation.
Change Management Fables
Leadership of Change® Volume 1
Change Management Fables: Ten change management fables about the leadership paradox of implementing organisational change management versus delivering normal day-to-day operations, structured on the ten-step a2B Change Management Framework®.
Change Management Pocket Guide
Leadership of Change® Volume 2
Change Management Pocket Guide: This change management pocket guide contains over thirty concepts, models, figures, assessments, tools, templates, checklists, plans, a roadmap and glossary, structured on the ten-step a2B Change Management Framework®.
Change Management Handbook
Leadership of Change® Volume 3
Change Management Handbook: This change management handbook contains over fifty concepts, models, figures, assessments, tools, templates, checklists, plans, a roadmap and glossary, structured, on the ten-step a2B Change Management Framework® each with a practical case study.
SLBoK – Operating System – Key Roles and Approaches Volumes (4-7)
Deep explorations of effective and proactive change leadership, organisational employee adoption, behavioural change, and the critical responsibilities of executive sponsors — the essential roles and approaches required to execute strategy and deliver sustainable transformation.
Change Management Leadership
Leadership of Change® Volume 4
Change Management Leadership: Effective and proactive leadership is essential for successful organisational change. This book outlines the three critical leadership responsibilities to implement change: Articulate the vision, Model the new way and Intervene to ensure sustainable change.
Change Management Adoption
Leadership of Change® Volume 5
Change Management Adoption: Achieving Employee Change Adoption in a major organisation change or transformation has mixed success and the ROI benefits are not always realised. For change adoption to be successful, the leaders, sponsor and change team should support the employees through the change transition by providing Awareness, Understanding, Involvement, Learning, and Motivation for the change.
Change Management Behaviour
Leadership of Change® Volume 6
Change Management Behaviour: Sometimes in order for an organisation to successfully deliver change or transformation and achieve sustainable change and benefits realisation employee behaviour change is required. To change these behaviours, the organisation must then support the employees through the change transition by implementing five key change behaviour stages: Recognise, Redesign, Resolve, Replicate and Reinforce.
Change Management Sponsorship
Leadership of Change® Volume 7
Change Management Sponsorship: Without a proactive and effective change sponsor, most change programmes or initiatives will fail to achieve the targeted objectives. This book outlines the three critical sponsorship responsibilities to successfully implement change; Say – communicating the change, Support – providing resources and Sustain – embedding the change.
SLBoK – Critique of Change Management Volumes (8-10)
We pretend → we malfunction → we never understood
Change Management Charade®, Insanity®, and Dilettante® deliver a rigorous critique of the change‑management profession, exposing the behavioural, systemic, and leadership failures that undermine organisational transformation. Their single purpose is to improve OCM.
Change Management Charade®
Leadership of Change® Volume 8
The Performance of Change — “we pretend.” This volume exposes the organisational charade that occurs when leaders, change teams, and ten other protagonists engage in symbolic performance rather than substantive transformation. The charade happens when senior leadership, the change team, and others participate in an elaborate pretence designed to create the appearance of organisational change. Leaders continue to prioritise day‑to‑day operations, avoiding their change‑leadership responsibilities, while the change team or consultants delude themselves into believing they can deliver successful change without authority, sponsorship, or control of critical resources, decision‑making bodies, and agenda time.
Change Management Insanity®
Leadership of Change® Volume 9
The Repetition of Malfunction — “we malfunction.” This volume examines the organisational insanity that emerges when leaders repeatedly apply unsuccessful approaches to change while expecting different results. Insanity begins when leadership fails to implement a robust change management framework or appoint a dedicated sponsor with the gravitas required to lead transformation. The cycle deepens as organisations neglect critical steps such as assessing and learning from previous change history, understanding individual leaders’ change standpoints, and aligning change with competing organisational priorities. Instead of learning, adapting, and improving, the organisation repeats the same malfunctioning patterns, reinforcing failure through habit, denial, and misplaced confidence.
Change Management Dilettante®
Leadership of Change® Volume 10
The Hollow Core — “we never understood.” This volume examines the dilettante behaviour that undermines change management from within — individuals who engage in the discipline without depth, commitment, or genuine understanding. The dilettante dabbles in change management, adopting its language and rituals without developing the expertise, discipline, or passion required to lead transformation. This hollow engagement contributes directly to high global change and transformation failure rates. Dilettantes can be identified by traits such as happy‑clappy change practitioner syndrome, a superficial grasp of core concepts, and a dependency on fashionable buzzwords rather than grounded methodology.
SLBoK – Competency Development Volumes (A-E)
Change Management, Leadership, Adoption, Behaviour, and Leadership Teams — a series designed to build change‑leadership skills, practical knowledge, and self‑awareness through immersive one‑day business‑simulation workshops tailored to each leader’s focused role.
Change Management Gamification Leadership
Leadership of Change® Volume A
Change Leadership Workshop Manual
Change Management Gamification Leadership: This change management gamification workshop manual supports organisational leaders to learn about change leadership in a workshop environment using a business simulation. It includes a business case study that enables experiential learning in a safe environment so the skills and knowledge can be immediately applied back in the workplace.
Change Management Gamification Adoption
Leadership of Change® Volume B
Change Adoption Workshop Manual
Change Management Gamification Adoption: This change management gamification workshop manual supports change practitioners to learn about change implementation with a focus on employee adoption in a workshop environment using a business simulation. It includes a business case study that enables experiential learning in a safe environment so the skills and knowledge can be immediately applied back in the workplace.
Coming Soon
Change Management Gamification Behaviour
Leadership of Change® Volume C
Change Behaviour Workshop Manual
Change Management Gamification Behaviour: This change management gamification workshop manual supports change practitioners to learn about change implementation with a focus on employee behaviour change in a workshop environment using a business simulation. It includes a business case study that enables experiential learning in a safe environment so the skills and knowledge can be immediately applied back in the workplace.
Change Management Gamification Sponsorship
Leadership of Change® Volume D
Change Sponsorship Workshop Manual
Change Management Gamification Sponsorship: This change management gamification workshop manual supports change sponsors to learn about change implementation with a focus on their three main change sponsorship responsibilities in a workshop environment using a business simulation. It includes a business case study that enables experiential learning in a safe environment so the skills and knowledge can be immediately applied back in the workplace.
Change Management Gamification Leadership Teams
Leadership of Change® Volume E
Change Leadership Team Workshop Manual
Change Management Gamification Leadership Teams: This change management gamification workshop manual supports leadership team to learn about change implementation with a focus on their three main change leadership responsibilities in a workshop environment using a business simulation. It includes a business case study that enables experiential learning in a safe environment so the skills and knowledge can be immediately applied back in the workplace.
SLBoK – Principles Saeculum Leadership® Canon Volumes I–V (Commencing 2026)
The foundational volumes of the SLBoK that establish the generational and philosophical doctrines required for disciplined leadership in the Saeculum era. They explain why leadership must evolve in a world defined by disruption, fragility, and accelerating change.
Saeculum Leadership®: Doctrine – Volume I
This volume establishes the philosophical foundation of Saeculum Leadership®, defining the generational, behavioural, and epistemic principles that shape leadership in an era of structural change. It introduces the core concepts, mental models, and doctrinal commitments that underpin the entire canon and form the intellectual architecture for Volumes II–V, including the early Saeculum Signals that help leaders recognise when history turns.
“Leadership in the Saeculum era demands clarity, discipline, and the courage to confront the collapse of the old system. We cannot lead the future with the assumptions of the past.”
This is a Saeculum Leadership® book about leadership when history turns — a work written to endure, not for this quarter, but for this era
Saeculum Leadership®: Laws – Volume II
This volume establishes the non‑negotiables of Saeculum Leadership®, codifying the structural laws that govern disciplined leadership in an era defined by generational pressure and systemic drift. It articulates the constraints, behavioural boundaries, and governing principles that leaders must respect to maintain clarity, authority, and coherence as the Saeculum progresses. These laws form the operational spine of the canon and provide the regulatory framework that supports Volumes III–V.
Saeculum Leadership®: Pillars – Volume III
This volume establishes the structural support of Saeculum Leadership®, defining the enduring pillars that anchor disciplined leadership across generational cycles. It articulates the core stabilising forces — behavioural, organisational, and philosophical — that enable leaders to maintain coherence, integrity, and direction as systems evolve and pressures intensify. These pillars form the load‑bearing architecture upon which Practice (Volume IV) and Legacy (Volume V) are built.
Saeculum Leadership®: Practices – Volume IV
This volume establishes the daily operating system of Saeculum Leadership®, translating doctrine, laws, and pillars into disciplined, repeatable behaviours. It outlines the practical methods, routines, and leadership disciplines required to apply generational principles in real‑world environments, ensuring leaders act with consistency, clarity, and moral steadiness under pressure. These practices operationalise the canon and form the behavioural bridge between Pillars (Volume III) and Legacy (Volume V).
Saeculum Leadership®: Legacy – Volume V
This volume completes the arc by addressing generational stewardship, transmission, and system durability of Saeculum Leadership®. It defines how leaders build institutions, cultures, and behavioural standards that endure beyond individual tenure, ensuring continuity across cycles of formation, acceleration, exposure, and convergence. Legacy is the capstone of the canon — the long‑horizon responsibility that transforms disciplined leadership into a transmittable, intergenerational system.
“Change waits for no leader. All leadership is about change and improvement”
Leadership of Change®
Change Management Body of Knowledge (CMBoK) - Volumes 1 - 7 Model Overview
