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Front cover of The 66-Day Habit Workbook
Back cover of The 66-Day Habit Workbook, showing the description
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The 30 & 66-day workbooks · 66 days · Set · Do · Seal

The 66-Day Habit Workbook

Build one habit that lasts, in three minutes a day

66 daysPaperback 5″ × 8″Ranges, not just numbers

Sixty-six days is not a slogan. It is the median.

Sixty-six days is the median time a habit took to become automatic in a University College London study, with a range from 18 to 254 days. This workbook prints that caveat instead of hiding it, then hands you the system the research actually supports.

Three minutes a day: mark the rep, score how automatic it felt, answer one question. Three outcomes, not two: Full, Floor, Miss. A tracker with only two boxes turns one bad Tuesday into the end of the attempt.

A complete, fully cited habit system, not a brand companion.

What’s inside

  • A 9-step Blueprint you fill in once, in one sitting
  • 66 daily pages, 9 weekly reviews, 3 road tests
  • The Groove Map and your own automaticity curve
  • A Re-Entry Ramp for the day two misses stack up

This is for you if

  • Your last streak died on the first missed day
  • You want the real number, range and all
  • You have three minutes, not thirty

Educational content. It is not medical advice and not a substitute for care from a clinician who knows your history.

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