The errata list is a list of errors and their corrections that were found after the product was released. If the error was corrected in a later version or reprint the date of the correction will be displayed in the column titled "Date Corrected".
The following errata were submitted by our customers and approved as valid errors by the author or editor.
Color key: Serious technical mistake Minor technical mistake Language or formatting error Typo Question Note Update
| Version | Location | Description | Submitted By | Date submitted | Date corrected |
|---|---|---|---|---|---|
| Printed | Page 55 code block |
the "!" should be a "not" in python syntax. |
Drew Hoskins |
Jan 29, 2026 | Jan 30, 2026 |
| Printed | Page 61 First paragraph |
It should say "Elise hopes the sky is *not* falling over there for her favorite design partner" |
Drew Hoskins |
Jan 26, 2026 | Jan 30, 2026 |
| Printed | Page 84 2nd paragraph |
"Learning" scenario is called "Understanding" in Chapter 2, and should be called Understanding here and throughout Chapter 4. |
Drew Hoskins |
Jan 29, 2026 | Jan 30, 2026 |
| Printed | Page 85 Table 4-1 |
The second column should have the heading "Scenario" |
Drew Hoskins |
Jan 29, 2026 | Jan 30, 2026 |