The Human OS Manual
Why Self-Improvement Fails When You Ignore the System Underneath
Available now in eBook, paperback and hardcover
The Human OS Manual by Oscar Trelles is a systems manual for people who are still functioning but increasingly depleted, who know what would help but cannot make the changes hold, or whose sleep, energy, mood, focus, food, stress, work, and relationships no longer make sense as separate problems.
It explains how energy, clarity, behavior, recovery, adaptation, and healthspan are shaped by one interacting system, and why isolated solutions so often fail to hold.
You are not broken. You are running a system you were never taught to understand.

Editions
Hardcover
Audiobook
The audiobook will come later. Leave your email if you want to be notified when it is out.
About Oscar Trelles
Oscar Trelles spent more than two decades studying how people behave inside systems built for attention, performance, trust, and change, across advertising, strategy, market research, technology, cybersecurity, entrepreneurship, and commercial leadership.
After severe burnout, he spent fifteen years rebuilding his health, resilience, and operating rhythm. The Human OS Manual grew from the continuity between those two periods: the same systems inquiry, brought closer to physiology, recovery, behavior, adaptation, environment, and healthspan.
Publication details
- Title
- The Human OS Manual
- Subtitle
- Why Self-Improvement Fails When You Ignore the System Underneath
- Author
- Oscar Trelles
- Publisher
- Ten & Walker PressAn imprint of Ten and Walker, S.L.
- Published
- October 15, 2026
- Language
- English
- Edition
- First edition
- Formats
- eBook / Paperback / Hardcover
- eBook ISBN
- 979-13-88447-00-6
- Paperback ISBN
- 979-13-88447-01-3
- Hardcover ISBN
- 979-13-88447-02-0
- Kindle ASIN
- B0H6MNML35