power, hormones, identity, and the moment a woman stops asking for permission
By Dr. Zrinka K. Fidermuc Maler—scientist, author, and advisor.
This book began the moment something inside me said:
Enough.
Enough apologizing.
Enough shrinking.
Enough pretending physiology had nothing to do with power.
From that moment on, everything changed.
This is not a book about reinvention.
It is about what happens when the identity that built your authority no longer sustains it.
Written from inside the fire—not from distance.
A manifesto for those who never lost power—only the permission to use it.
This is not a leadership book.
It is a field report from the moment the authority breaks —and the moment it is rebuilt.
Why high-functioning leaders suddenly lose internal stability
How physiology, identity, and leadership quietly shape authority
How authority is rebuilt from the inside
get the book
Bulk orders for organizations, leadership programs, and teams.
why this book now
Across medicine, industry, and executive leadership, pressure has intensified while the internal dimension of decision-making remains largely unexplored.
The Hat and the Hill — gives language and structure to this invisible terrain.
Early Reader — The Hat and the Hill
Early Reader — The Hat and the Hill
Early Reader — The Hat and the Hill
Early Reader — The Hat and the Hill
Early Reader — The Hat and the Hill
Writer and Leadership Advisor
Dr. Zrinka K. Fidermuc Maler - is a scientist, writer, and leadership advisor working at the intersection of physiology, authority, and decision-making.
She has international experience, including work connected to DLR-PT (German Aerospace Agency – Project Management Agency).
She advises senior leaders navigating high-stakes decision environments, focusing on sovereignty, responsibility, and leadership under pressure.
Her work explores how physiological reality shapes authority, identity, and leadership in moments of pressure.
Sovereign Red Hat Press
Frankfurt/M—Zagreb