Focus is a system, not a talent. The 30-Day Deep Focus builds a working focus routine in four weeks. Week 1 audits where your attention actually goes and helps you choose one project that matters. Week 2 practises single-task timed blocks with a clear definition of done. Week 3 arranges the environment and boundaries: phone distance, a notification audit, spoken block times, and a shutdown ritual. Week 4 defines a minimum block, a repair plan for broken days, and a one-page routine that survives busy, boring, and disrupted weeks. Each day ends with one concrete action and a short checklist in prose. Book 3 of the Small Habits, Big Life series, and its closer; complete and usable on its own, it ends by showing how the morning, money, and focus systems fit together. General productivity guidance only: this book is not medical or mental-health advice and promises no particular result.
