The Johnny.Decimal Workbook [D41.00.00]

68 ratings

A guide to setting up a single-project system and working the Decimal way.

In this step-by-step workbook, I’ll guide you through the entire process of setting up your own Johnny.Decimal system.

This 130+ page PDF has been distilled from more than a decade’s experience developing Johnny.Decimal: organising my home life since 2011, and at a variety of jobs; from independent dance productions, through small consultancy firms, to large government departments.

Lucy and I have spent hundreds of hours putting it together. We’re really proud of it.

Each workbook area contains the following sections:

  1. Overview: I explain what we’re about to do.
  2. Before you start: any background that you need so that you understand what you’re about to do, and why.
  3. The process: the steps that you need to take.
  4. As you complete this process: any other tips ‘n tricks that I’ve learned over the years that will help you succeed.
  5. Area complete: each area is accompanied by a video where I recap the area’s tasks and demonstrate any of the tricker concepts.


“It’s amazing and transformative. I’m very thankful for having found this.”

osau, on the forum

It walks you through the process of capturing all of the information you need, and then building your system.

Lucy and I have spent hundreds of hours putting it together. We’re really proud of it.

I guarantee your success using this workbook: if you get stuck, every section has a dedicated help post on the forum. You can contact me directly. And if your system still isn’t working, you can have your money back.


“The document is so precise, so content focused. Absolutely brilliant work!”

Zsolt, by email


Why isn’t the workbook free?

Because neither is my rent. :-)

I quit my job to focus on Johnny.Decimal. If I hadn’t done that, this document wouldn’t exist.

Johnny.Decimal is just me and my parter Lucy. We’re not some giant corporation. Your purchase of this workbook literally pays our rent and allows me to keep developing this system. Thank you.

What do I get?

The PDF is 130+ pages, 20,000+ words, a bunch of images, and blank worksheets for you to track your progress.

And at the end, there are videos where I share examples from my life and provide templates to get you started.

Each area has a link to a dedicated post on the forum where you can get help if you’re stuck.

Is it meant for home, or work?

Both. The concept is the same whatever you’re organising, and we’ve included a range of examples from home and work.


“I can only advise you to purchase the Johnny.Decimal Workbook ... and to respect its approach. You won’t regret it.”

Mentat, on the forum

I can't afford $37

Click here.

Is it accessible?

Yes. Your purchase includes a text-only (Markdown) version. This version references the workbook images, which are included as a separate PDF: each image on its own page, with descriptive text.

All of the videos are subtitled, and have been meticulously checked and corrected by Lucy.


This PDF will be updated from time to time. If you think you'll be sad if you miss the news that there's a new version to download:

  • Use a valid email during check out
  • And/or follow this Gumroad page
  • And/or join the mailing list
  • And/or join the forum
  • And keep your receipt (it has your unique download link)


I want this!
1,315 sales

14-day money back guarantee

If the Workbook didn't help you, please let me know why so that I can improve future versions. I'll be happy to refund you.

Johnny.Decimal is just me and my partner Lucy: we're not some big corporate machine. Every sale feels personal, and we really want you to be happy.

Last updated Sep 20, 2023

A comprehensive (130+ pages) PDF covering the following areas:

Defining your system's scope
Sorting your areas & categories
Building your system
The index
Working the Decimal way
Examples & templates


(68 ratings)
5 stars
4 stars
3 stars
2 stars
1 star

The Johnny.Decimal Workbook [D41.00.00]

68 ratings
I want this!