The author & the method
Why this workbook exists, who made it, and the research it stands on.
Who wrote it
The 91-Day Habit Workbook is written by Parag Gulhane, an independent author and self-publisher. It is not the product of a publishing house or a marketing team — it was built directly from the primary behavioural-science literature and shaped through real day-by-day use of the system it teaches.
A note to replace: add two or three sentences here in your own voice — what led you to build a habit system, what you do, and why readers should trust your take. First-hand experience is what search engines and readers both reward.
Why it exists
Most habit journals die around week three, and the empty pages make sure you feel it. This workbook is engineered around the one fact those journals ignore: what breaks a habit isn't a missed day — it's the shame spiral after one. So the system is built to survive bad weeks, not to demand perfect ones: a two-minute daily check-in, four Emergency Passes, a "never miss twice" rule, and support that fades on purpose as the habit takes hold.
The research it stands on
Every mechanism in the book traces to published, peer-reviewed work. The load-bearing sources:
- Lally et al. (2010), European Journal of Social Psychology — habits took on average 66 days to become automatic (range 18–254); single missed days made no measurable difference.
- Gollwitzer & Sheeran (2006) — implementation intentions (deciding when and where in advance) substantially raise follow-through.
- Harkin et al. (2016), Psychological Bulletin — across 138 experiments, monitoring progress reliably improved behaviour; more frequent tracking worked better.
- Stawarz, Cox & Blandford (2015), ACM CHI — reminders kept people repeating a behaviour but hindered automaticity; event-based cues built it.
- Sharif & Shu (2017; 2019) — a limited, costly allowance for skips beat both rigid and easy goals.
The full reading list — the four books that shaped the field — lives on the Go Deeper page.
Independent & honest
This workbook and website are an independent publication, not affiliated with, endorsed by, or connected to James Clear, Atomic Habits, or any other author or title mentioned as recommended reading. The book and site provide general behavioural information for self-improvement — not medical, psychological, or therapeutic advice.
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