Personal Knowledge Management for Beginners

Personal knowledge management (PKM) means collecting what you learn, organizing it so you can find it, connecting ideas, and putting them to use. To start, decide what's worth saving, capture everything in one inbox, tag and link notes when you review them, and use your notes to make something. Then let the system change as you do.

That's the five-step starter from Chapter 11 of After the Crash. Here's each step, and what I use.

What PKM actually is

"Personal Knowledge Management is just a fancy term for:"

• Collecting information (notes, quotes, ideas, articles, highlights)
• Organizing it so you can find and use it later
• Connecting thoughts to spark creativity
• Putting it to work—whether in your career, creative projects, or personal life

"If you've ever saved a recipe, copied a quote, or made a checklist, you're halfway there." The goal is to make it intentional, "so you don't drown in digital clutter."

It isn't new. “From Marcus Aurelius's "Meditations" to Da Vinci's notebooks to Luhmann's Zettelkasten, history's best minds used commonplace books, sketches, and index cards to build and connect their ideas.” Apps just made it easier. Tiago Forte calls the result a "second brain".

Why bother

Four reasons, as I list them in the book:

• Clarity: you filter out noise and focus on what matters.
• Creativity: "When your ideas are connected, you start seeing patterns and making leaps you'd never make otherwise."
• Efficiency: "You stop reinventing the wheel. Past you did the hard work—now you can build on it."
• Confidence: "you trust your system to catch what your memory forgets."

Step 1: Decide what matters

“Don't try to save everything. Ask: "Does this help me now or in the future? Does it connect to my goals or projects?" Be picky.”

My first phase was pure collecting, and "with no structure, it just became digital noise."

Step 2: Capture quickly in one place

“Pick one "inbox" for quick capture—Notion, Evernote, Roam, a physical notebook, whatever. Don't rely on memory.”

For me, quick capture means “Voice notes, Readwise, or a "capture inbox" in Notion—any idea, any time, zero friction.”

Step 3: Organize and connect

"Tag, link, and summarize. Use folders, tags, or graph views to show relationships. Regularly review and clean out old stuff."

Keep it simple. One of the skills that makes PKM work is "Tagging, linking, and sorting—but not overcomplicating."

Step 4: Use and repurpose

"Don't let your notes rot." The point of the system is output: "am I using my notes to create, communicate, solve, or share? If not, something's off."

One habit helps here: "progressive summarization" (Tiago Forte's term). "each time you revisit a note, make it a little clearer or more concise."

Step 5: Keep evolving

"As your needs change, let your PKM change too. Try new tools. But remember: the system should serve you, not the other way around."

What my setup looks like

Roughly, from the book:

• Note taking: Notion, and sometimes Obsidian.
• Quick capture: voice notes, Readwise or a capture inbox in Notion.
• Read-it-later: Readwise and Notion for articles, highlights and book notes.
• Projects: tasks live in Notion, linked to the notes I need.
• Archive: finished projects and old notes, "Out of sight, but easy to find when needed."

The tools matter less than the habit of coming back. If your head is the current inbox, start with a brain dump. For a regular check of your tasks and goals, see my simple weekly review.

One thing to try today

Pick your one inbox (10 minutes). Choose one place where every idea, quote and to-do goes first, and put a shortcut to it on your phone's home screen. For one week, capture only there. At the end of the week, keep what helps and delete the rest.

Free: Chapter 11 of After the Crash is all about building your own PKM, step by step. The free edition: isakvidinghoff.com/free-book

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Sources

• After the Crash, Ch 11: "Personal Knowledge Management is just a fancy term for…"
• After the Crash, Ch 11: “From Marcus Aurelius's "Meditations" to Da Vinci's notebooks to Luhmann's Zettelkasten…”
• After the Crash, Ch 11: "Past you did the hard work—now you can build on it."
• After the Crash, Ch 11: “Don't try to save everything… Pick one "inbox" for quick capture…”
• After the Crash, Ch 11: "with no structure, it just became digital noise."
• After the Crash, Ch 11: "any idea, any time, zero friction."
• After the Crash, Ch 11: "Tagging, linking, and sorting—but not overcomplicating."