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The Pocket Notebook Method: How to Remember What You Read

I switched to a simple pocket notebook to process the ideas I read and watch. These are the three habits I use to remember them.

Luis Duque, PE · · 6 min read

Here is the method in short: scribble a lot while you're trying to learn something, then turn what's in those scribbles and sketches into a summary that takes two minutes or less.

Before you write the summary, put away whatever you were reading or watching, and summarize everything you learned in your own words.

Watch the full video for everything shown on camera.

Best for remembering what you read: active scribbling followed by a short summary from memory. Skip it if you only want somewhere to store information for later.

Why reading more is not enough

The first thing to understand is that knowledge does not equal power. When we try to learn something, most of the effort goes into input: we keep filling our brains with more of it.

We read books and articles, and we watch videos. The input keeps piling up, but none of it reaches our skills.

I came to realize there is a retention wall. If you don't work hard to turn that input into skills and knowledge, you get stuck filling up one side of your knowledge system without ever applying what you learned.

There's active learning and there's passive learning. In active learning, you engage with what you're reading, listening to or watching.

Passive learning is what you do sitting back on the couch or in your chair, watching a video or reading a book and simply enjoying it.

Passive learning has its place, but you don't retain much because you're not engaging with the content. The easiest way over the retention wall is to do something with the idea using your hands, your brain and your body.

Best for building usable knowledge: do something with the idea before moving to the next source.

The three-step pocket notebook method

Whenever I'm studying, watching a video or trying to understand a new concept, I have a pen and paper with me. I keep a pocket notebook on me at all times, and it's full of the notes and scribbles my hands make while I'm trying to learn something.

MethodWhat you doWhat happensBest for
Passive consumptionRead or watch without taking actionYou keep adding information without processing itEnjoying the source
Active scribblingWrite notes, lists, diagrams, and sketchesYour brain processes the idea before it reaches the paperStaying engaged
Two-minute summaryClose the source and restate what you learnedYou test what you can recall in your own wordsRemembering and applying ideas
Digital storageSave the source in an app or folderThe information remains available, but may go untouchedBuilding a searchable archive

1. Scribble while you learn

When I'm watching a video, I'm constantly writing notes, bullet points and lists, drawing diagrams, and making sketches.

Keeping my hands busy while I learn creates a connection between my brain and the paper in front of me.

Make sure you have a pen and some paper with you.

Writing things down keeps your hands engaged with the content.

That keeps your brain listening for cues in the video, the book, or whatever else you're reading or watching.

To put an idea on paper, your brain has to process it first.

Best for staying engaged: quick notes, rough diagrams, and imperfect sketches.

2. Put the source away

When you finish the video or the chapter, the next step is just as important. Sit down, turn off the TV, the laptop or the video, or put your book away.

Then spend a couple of minutes summarizing everything you learned in your own words. The summary could be a set of bullet points or a short essay.

You're not spending half an hour or an hour trying to recall every single detail. You're writing down the first things that come to mind.

When you're done, you'll have the sketches and notes you made while watching or reading, plus a quick summary you can reference later.

I usually box off the summary at the bottom of the notebook page. That way I know it's the part I wrote after stepping back for a couple of minutes and putting what I learned on paper.

Best for testing recall: close the source before writing the summary.

3. Stop treating storage as learning

For a long time, I used Notion, Obsidian and Evernote.

I was hardcore digital, but I was just chucking things into folders and notes and never really doing anything with them.

These apps are fantastic and do a lot of great things. But I found that their ease of use had me loading them with information without taking the time to process it or learn more about it.

I was just storing it and letting AI summarize it. I was outsourcing the thinking to the tools instead of building systems that would actually help me retain the information.

That's one of the reasons I switched to a simple pocket notebook for processing ideas.

I started carrying it everywhere I went and taking more notes, both mental and on paper. I paid more attention to how my day was going and engaged more with my thoughts and feelings.

Best for processing an idea in the moment: a pocket notebook.

What to write in the two-minute summary

The summary can be a list of bullet points. If you're a visual person, it could be a more refined sketch made in two minutes. Or it could simply be a paragraph that sums up, in your own words, what you just learned.

Either way, you're taking time to engage with the content: scribbling, writing notes, and maybe contradicting and challenging the ideas you're reading or watching. Your brain works harder to retain the information because you're actually thinking about it.

Putting it on paper is taking action. Moving your hands creates connections in your brain that say: I'm reading this, I'm processing it in my head, and now I'm going to process it on paper.

These are not hard and fast rules. Just take a couple of minutes, grab a pen or pencil and whatever paper is near you, and write down what you learned.

Best overall method: scribble during the source, close it, and spend two minutes writing what remains.

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Frequently Asked Questions

How do you use a pocket notebook to remember what you read?

Scribble a lot in a pocket notebook while you read or watch something. Then put the source away and turn those scribbles into a summary of what you learned, written in two minutes or less.

How long should the summary take?

The summary should take only a couple of minutes. Write what you learned in your own words, putting down the first things that come to mind rather than every detail.

Are digital notes bad for learning?

Digital note apps like Notion, Obsidian and Evernote are fantastic. Their ease of use, though, had me loading them with information without taking the time to process it. That's why I switched to a pocket notebook.

What should the summary look like?

The summary can be a set of bullet points, a short essay written in a couple of minutes, or simply a paragraph that sums up, in your own words, what you just learned.

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