**STATUS: BOOK COMPLETE (2026-05-11)** - Part I word count after expansion: **~50,000 words** (Chs 1-3 already substantial; Chs 4-6 expanded with deeper exercises, quizzes, case studies, key takeaways, and further reading) - Part II word count after expansion: **~40,000 words** (Chs 7-9 expanded; fu