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• The Leadership Cube™: Signature Edition – An      Integrated Framework for Leadership Alignment and Organizational      Excellence (Theilacker 2025) serves as the comprehensive companion to      the Leadership Cube™ series, integrating the core principles of      clarity, alignment, and continuous improvement into a single reference      guide. Designed for educators, consultants, and organizational leaders.

• The Leadership Cube™: Turning Leadership      Complexity into Leadership Clarity (Theilacker 2025, 2nd ed.) explores      in detail how leaders move from confusion to clarity by defining and      aligning around purpose.

• The Leadership Cube™: Building Team Alignment –      Turning Purpose, People, and Process into Aligned Action (Theilacker      2024) shows how to empower individuals and teams, resist micromanagement,      and translate purpose into aligned action.

• The Leadership Cube™: Deploying Lean Six Sigma      Leadership (Theilacker 2025) demonstrates how systems and methods      sustain alignment, ensuring that clarity and empowerment endure over time.

David Theilacker's "The Leadership Cube™" provides invaluable examples which will be of great value to those who are charged with attaining goals by marshaling the best from their team. 

Michael L. George Sr. Best Selling Author of Lean Six Sigma, BS, MS Physics, Founder and Chairman of the George Group, and Principle at Blackland Private Equity Group.

The Leadership Cube™ is an important addition to the body of work addressing organizational effective processes. It specifically addresses goals, responsibilities, and accountabilities for all whom are part of every level of business organizations. David Theilacker has chosen an interesting analogy with the Rubik's cube. When combined with his leadership workshops, it is a powerful practical tool. I would strongly recommend this journey as a way to organizational success, taught by a master of continuous process improvement. 

Vice Admiral Walter B. Massenburg, USN (Retired) Former Commander, Naval Air Systems Command

At Couples Resorts, we value the development of leadership competencies as a driver of effective business performance.  David Theilacker's Leadership Cubeprinciples that were shared with us by David himself in two engaging workshops at our properties gave us the tools that we needed to achieve this goal. The concepts presented in David's book and workshops have significantly enhanced our management team's approach to leadership, fostering improved communication, decision-making, and team dynamics.

“I wholeheartedly recommend this book to HR professionals and leaders seeking to align their organization's leadership capabilities to their business strategies while maintaining a positive, lasting impact on their teams."

Floyd Burchell

Director of Human Resources (Couples Resorts, Jamaica)

The Leadership Cube™ delivers a powerful, integrated framework for achieving organizational alignment through Purpose, People, and Process. Blending insight with action, it combines proven tools — including Lean Six Sigma methods, diagnostics, and experiential workshops — to create cultures of clarity, accountability, and continuous improvement.

Kimberly Watson-Hemphill

President, Firefly Consulting

Author, Innovating Lean Six Sigma and Fast Innovation