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Better, one small step at a time.

Plain-English guides to kaizen and continuous improvement: where the ideas came from, the lean tools small teams can actually use, and how to apply small-step improvement at home and in daily life. Every guide links to its sources.

Start hereWhat Kaizen Means: The Word, Its Origins and Its Core IdeasA plain-English guide to kaizen: what the word means, how Masaaki Imai introduced it to Western management in 1986, and the few ideas that make it work.

Articles

18 articles

Kaizen Basics

What Kaizen Means: The Word, Its Origins and Its Core Ideas

A plain-English guide to kaizen: what the word means, how Masaaki Imai introduced it to Western management in 1986, and the few ideas that make it work.

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Kaizen Basics

PDCA and PDSA: Shewhart, Deming and the Improvement Cycle

How the improvement cycle grew from Walter Shewhart's 1939 idea into Deming's PDSA, why Deming preferred Study to Check, and how to run a cycle that teaches you something.

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Kaizen Basics

Going to the Gemba: Why Kaizen Starts Where the Work Happens

What gemba and genchi genbutsu mean, why lean leaders go and see for themselves, and how to make a gemba walk respectful and useful instead of an inspection tour.

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Kaizen Basics

The 5 Whys: Root-Cause Thinking and Where It Falls Short

How Taiichi Ohno's habit of asking why repeatedly gets past symptoms to causes, how to run a 5 Whys session well, and the limits to watch for with complex problems.

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Kaizen Basics

Small Steps vs. Big Leaps: Why Incremental Change Works

Why kaizen favors small, frequent improvements over occasional overhauls, when a bigger leap makes sense, and how to keep small changes adding up instead of fading.

Read · 5 min read →
Kaizen Basics

Respect for People: The Human Side of Kaizen

What Toyota means by respect for people, how it sits beside continuous improvement in the Toyota Way, and what it looks like in day-to-day practice on any team.

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Kaizen at Work

5S for Small Teams and Offices: Sort, Set, Shine and Make It Stick

How a small team can use the five S's of lean to make missing items and problems visible, in a shared room or a shared drive, and keep it going.

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Kaizen at Work

Standard Work: The Baseline That Makes Improvement Possible

What lean standard work is, why it has to come before kaizen, and how a small team can write short, living standards with the people who do the job.

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Kaizen at Work

Running a Kaizen Event: Plan, Run and Follow Up a Rapid Improvement

How to prepare, run and follow up a kaizen event or rapid improvement workshop, with a sample agenda and the failure modes to avoid.

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Kaizen at Work

A3 Problem Solving: Telling the Whole Story on One Sheet

How the Toyota-pioneered A3 works, section by section, with a worked hypothetical example and tips for starting one and coaching with it.

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Kaizen at Work

Visual Management in Lean: Andon, Problem Boards and Huddles

Lean visual management for small teams: make normal obvious, signal problems with andon, use problem-solving boards and run short huddles.

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Kaizen at Work

Poka-Yoke: Mistake-Proofing Work So Errors Can't Slip Through

What poka-yoke is, where it came from, the four approaches to mistake-proofing and how to design a simple, strong device for a recurring error.

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Kaizen in Daily Life

Kaizen at Home: 5S Your Kitchen, Closet or Garage

How to use the lean 5S method of sort, set in order, shine, standardize and sustain to fix one kitchen, closet or garage zone at a time and keep it that way.

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Kaizen in Daily Life

Small-Step Learning: Improve a Skill a Little Every Day

Apply kaizen to learning with spaced practice, self-testing and focused practice, based on named studies, plus a simple daily routine you can adjust.

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Kaizen in Daily Life

Kaizen for Health Habits: Small Steps Toward CDC Guidance

Use small, one-at-a-time changes to build movement, sleep and eating habits, guided by CDC recommendations. General information, not medical advice.

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Kaizen in Daily Life

A Personal PDSA: Small Experiments on Your Daily Routine

Run plan-do-study-act cycles on your own routines: set an aim, predict the result, test small, study what happened and make good changes your new standard.

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Kaizen in Daily Life

Kaizen for Your Money: Small, Steady Fixes to Spending and Saving

Apply kaizen to household money with CFPB guidance: track spending, spot waste, match bills to paydays, automate small savings and review monthly.

Read · 5 min read →
Kaizen in Daily Life

Poka-Yoke at Home: Mistake-Proofing Everyday Routines

Borrow lean mistake-proofing to stop repeated slips at home, from lost keys and missed bills to smoke alarm checks and safe storage of chemicals.

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Glossary

54 Kaizen and lean terms explained in a sentence or three, from 5S to yokoten.

Browse the glossary →