EHO came out of reading, study and practice. Here are the book that grounds the method, the technical materials that support it and the library that shaped its view of people, leadership and risk.
Human Ecosystems in Organisations — the invisible gears of behaviour, climate and leadership · Carlos Wanderley · 2026 · ISBN 978-65-02-20491-7
The book that gave rise to the EHO Method. Through the story of the ship Atlântico VII — a human ecosystem in miniature — it makes visible the phenomena that precede conflict, illness and liability: how decisions, structures and leadership styles shape people's behaviour and, in time, the culture of the organisation itself.
It is not a book about psychosocial risks. It is a book about what produces them.
The EHO Method comes with a set of technical materials that substantiate both its application and its defence. Those documents form the supporting dossier handed to every EHO client — and they can accompany the company's defence file in audits and expert examinations.
It grounds the method: the regulatory landscape, the logic of the respondent as a source of evidence about the environment, and the nature and legal function of the report. This is the document that explains why EHO holds up.
The complete architecture: the 12 dimensions, the indices, the 24 factors, the traceability and the calculation structure. This is the document that evidences how the method works.
The dimension-by-dimension mapping of correspondence with NR-1, NR-17, the GRO Manual and the LDRT (Brazil's list of work-related diseases).
Available as free downloads, after a quick registration:
The structure of the book, the full table of contents and selected chapters, in PDF.
An overview of how EHO answers the requirements of the standard, with the 12 dimensions and the four regulatory anchors: NR-1, NR-17, the GRO/PGR Manual and the LDRT.
The introduction, the regulatory landscape and the chapter "The Respondent as Witness", as a sample.
The introduction and technical table of contents, which convey the scale of the method's rigour.
The books that helped build the EHO Method's view of human behaviour, leadership, organisational culture and psychosocial risk.
Pillar 1 — Leadership, purpose and resilience. Ernest Shackleton's journey shows how human decisions, trust and shared purpose hold a group together in the most extreme circumstances. Why EHO recommends it: because real leadership shows up when the supplies run out.
Pillar 1 — Leadership, purpose and resilience. Written out of the author's experience in the concentration camps, it shows that human beings endure enormous hardship when they find purpose. Why EHO recommends it: because organisations, too, must offer meaning and not merely tasks.
Pillar 2 — Psychodynamics and occupational health. Dejours demonstrates how the organisation of work can produce suffering or foster mental health. A foundation also cited by the GRO Manual. Why EHO recommends it: because it helps explain how an environment can make people ill even before any symptom appears.
Pillar 3 — Decision, behaviour and cognition. Kahneman explains how our decisions are shaped by two mental systems, one intuitive and one analytical. Why EHO recommends it: because understanding human decisions is essential to understanding organisations.
Pillar 3 — Decision, behaviour and cognition. Sapolsky connects neuroscience, hormones, genetics, culture and evolution to explain why we do what we do. Why EHO recommends it: because human behaviour arises from the interaction of brain, environment and context.
Pillar 4 — Culture, psychological safety and systems. Edmondson demonstrates that teams perform better when there is psychological safety to question, learn, err and collaborate. Why EHO recommends it: because safe environments produce people who are more engaged, more inventive and healthier.
See the method at work, applied to your own company's environment.
Prefer to understand the architecture first? The method page opens the full chain, from invisible risk to the technical report.
