"The Leadership Impact Code": New Book Decodes Leadership Impact Using Neuroscience

Uli Funke and Prof. Dr. Bruno Haller demonstrate why leadership impact is measurable. Each copy includes a voucher for the 5iol test.

Vlotho, May 4, 2026. Why do some leaders achieve lasting impact while others do not? Uli Funke, founder of the Academy for Applied Neuroscience (A|F|A|N), and Prof. Dr. Bruno Haller, leadership expert, psychological diagnostician, and management consultant, explore this question in depth in their new book "The Leadership Impact Code: The Secret of Effective Leadership." The book will be released on May 4, 2026, and is now available in bookstores as well as through Amazon and other online retailers.

The concept of neuroleadership (the systematic application of neuroscientific findings to leadership issues) forms the scientific basis of the book. Funke and Haller translate current research findings into a practical model and demonstrate that leadership impact follows biological principles that can be understood, measured, and specifically developed.

Measuring leadership impact: the Leadership Impact Code in five dimensions

The "Leadership Impact Code" describes five dimensions of impact on which leadership effectiveness is based, according to neurobiological and psychological findings: motivation and meaning, security and trust, learning and self-regulation, resonance and relationships, as well as values and attitude. The book explains the scientific foundations of these dimensions and demonstrates how the findings can be translated into concrete development measures. Measuring leadership impact thus involves not only self-reflection but also comparison with a model based on ten measurable factors.

"Good leadership is not a 'soft skill'; it is a company's toughest operating system," explains Uli Funke, founder of the Academy for Applied Neuroscience (A|F|A|N).

Voucher for the 5iol Test in every copy

Every copy of the "Leadership Impact Code" contains a voucher for the 5iol Test, the self-assessment procedure for leadership impact across the 5 impacts of leadership. In about ten minutes and 30 questions, the test reveals one's own leadership impact across all five dimensions of the model. The procedure was developed by Prof. Dr. Bruno Haller, with support from Uli Funke, and is available at 5iol.online. It is suitable for individual reflection as well as a starting point for coaching and leadership development processes. Those who understand their leadership impact know which levers to pull to achieve the greatest change with minimal effort.

"The 5iol test makes leadership impact visible and thus malleable," says Prof. Dr. Bruno Haller, owner of Haller Consulting and co-author of the book.

Bibliographic Information

Title: The Leadership Impact Code - The Secret of Effective Leadership
Authors: Uli Funke & Prof. Dr. Bruno Haller
Publisher: A|F|A|N Publishing, Hamburg
Publication Date: May 4, 2026
Paperback: ISBN 978-3-384-86839-8
Hardcover: ISBN 978-3-384-86840-4
E-book: ISBN 978-3-384-86841-1

The Gallup Engagement Index demonstrates the strong correlation between leadership impact and employee retention. According to the annual survey, a lack of leadership remains the key driver of employee turnover in German companies.

Frequently Asked Questions

What is the Leadership Impact Code?
The Leadership Impact Code is a model developed by Uli Funke and Prof. Dr. Bruno Haller that describes leadership impact across five dimensions and makes it measurable. The book of the same name will be published on May 4, 2026, and combines neuroscientific research with psychological diagnostics.

How can leadership impact be measured?
Leadership impact can be measured using the 5iol test: This self-assessment procedure uses 30 questions and takes about ten minutes to assess one's own leadership impact across the five dimensions of the Leadership Impact Code. Each copy of the book includes a voucher for the test at 5iol.online.

Where is "The Leadership Impact Code" available?
The book will be available starting May 4, 2026, in brick-and-mortar bookstores as well as through Amazon and other online retailers, in softcover (ISBN 978-3-384-86839-8), hardcover (978-3-384-86840-4), and e-book (978-3-384-86841-1).

About AFAN Solutions GmbH / A|F|A|N

Since 2021, the Academy for Applied Neuroscience A|F|A|N (AFAN Solutions GmbH) has been providing neuroscience-based knowledge for professionals in leadership, training, coaching, and organizational development. Founder Uli Funke has developed BRAIN FOR BUSINESS (R), a practical continuing education program that applies neurobiological insights directly to everyday professional life. Together with Prof. Dr. Bruno Haller, A|F|A|N also offers the NEURO IMPACT COACH (R) training program. For more information: afan.academy

Press Contact

Uli Funke
presse@afan.academy
afan.academy

Note to Editors: Print-ready images (book cover) and review copies available upon request.

AFAN Solutions GmbH
Johanne-Stelzer-Str. 2
32602 Vlotho
Germany

https://afan.academy

Herr Uli Funke

presse@afan.academy

Since 2021, the Academy for Applied Neuroscience A|F|A|N (AFAN Solutions GmbH) has been providing neuroscience-based knowledge for professionals in leadership, training, coaching, and organizational development. Founder Uli Funke holds a Master's degree in Cognitive Neuroscience and is a speaker, coach, science journalist, and author. With BRAIN FOR BUSINESS (R) and the NEURO IMPACT COACH (R) (in collaboration with Prof. Dr. Bruno Haller), A|F|A|N offers practical training programs that apply neurobiological insights directly to everyday professional life. afan.academy

This release was published on openPR.