Book Corrections & Updates

A small number of early print copies of Profitable Engineering shipped with two figures that did not match what the chapters describe. The Kindle edition and subsequent print runs are corrected. The intended figures are shown below so readers with early copies have what was intended.

A note from Phil: Thank you for reading the book. If you spot anything else that looks off, I want to know. Email me at phil@ryuadvisorymedia.com and I will get it added to this page.

Chapter 3 · Figure 3.3

The Right Environment & Culture and Support Model

An early print run shipped with an incorrect version of this figure. The corrected figure is shown below and reflects what the chapter describes.

Status: Corrected in Kindle and in subsequent print runs.Posted: June 2026
Figure 3.3 — Right Environment (Tools, Automation, Self-Service Infrastructure) reducing daily friction, and Culture & Support (Psychological Safety, Autonomy, Sense of Purpose, Mastery) fueling engagement and innovation, together producing teams that deliver their best work.
Figure 3.3 — The Right Environment and Culture & Support together produce teams that deliver their best work.

Download the corrected figure (JPG) ↓

Chapter 5 · Figure 5.1

The Flow → Realization System

An early print run shipped with an incorrect version of this figure. The corrected figure is shown below and reflects what the chapter describes.

Status: Corrected in Kindle and in subsequent print runs.Posted: June 2026
Figure 5.1 — The Flow to Realization System, showing layers from User Needs, System Architecture, Delivery Disciplines, System Visibility, Flow, and Realization (Outcomes), with the progression: understand the system, make work visible, improve flow, realize value.
Figure 5.1 — Improving engineering performance by understanding the system that delivers value.

Download the corrected figure (JPG) ↓

Spotted something else?

If you find a typo, an incorrect reference, or anything that does not match what a chapter describes, please email phil@ryuadvisorymedia.com. Confirmed issues will be posted on this page and corrected in the next printing.