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How the New NoteDex Android App Saved My Boox Air 3C From Collecting Dust
I’ll be honest: I almost stopped using my Boox Air 3C . Like many of us who buy e-ink tablets, I had high hopes. I pictured myself writing long notes, planning projects, and getting work done distraction-free. However, after a while, I rarely picked it up. The built-in notes app—while good—felt stand-alone and isolated. My notes felt lost in the device, separate from the rest of my daily workflow. My Boox was slowly turning into an expensive reading tablet! The magic of using

Prem Sundaram
Sep 30, 2025


How to Print Index Cards on Mac: Create, Customize, and Learn Smarter
How to print Index Cards on Mac

Prem Sundaram
May 6, 2025


Best Note Taking Apps for Microsoft Surface Pro, Apple iPad and Android tablets with Handwriting Pen
Taking handwritten notes on your Microsoft Surface, Apple iPad or Samsung Galaxy Tab. We explore a range of apps that work on all of them

Prem Sundaram
Jan 14, 2023


The four apps I keep on every screen
Four cross-platform apps that follow me from laptop to iPad to phone, and the two that think with me when the others cannot. A confession, a swap, and what to do this week.

Prem Sundaram
5 minutes ago


Three Types of Notes (and Why the Card Is the Constraint)
Every note you take is one of three things: quote, paraphrase, or your own idea. The note systems that change how you think give each one its own card.

Prem Sundaram
3 days ago


Improving NoteTaking with Clients
The fastest way to lose a client is to forget what they told you. One card per meeting keeps the meeting — and the follow-ups — recoverable.

Prem Sundaram
5 days ago


What Note-Taking Is Actually For
Note-taking isn't a productivity hack. It's how you keep the parts of your thinking that an AI will never have — context, surprise, and the slow accumulation of your own mind.

Prem Sundaram
Sep 28


Notetaking at College Wasn't About the Method
I took four methods to my first college lecture. List, outline, concept map, Cornell. The method was not the problem. The constraint was missing.

Prem Sundaram
Sep 25


How Umberto Eco Wrote a Novel
Eco did not outline his novels. He collected cards. The card is the constraint that makes the novel possible — and the constraint is the move that most writers skip.

Prem Sundaram
Sep 23


How NoteDex makes you more productive
I sent a link to my notes. Three formats. Two apps. Nobody opened it. Then I wrote the whole thing on one index card, and the card did the work the cloud could not.

Prem Sundaram
Sep 21


How to read research papers fast and effectively
Three passes, one card per pass, no transcript. Why the 3-pass approach only works when each pass is forced onto a single index card.

Prem Sundaram
Sep 18


Visual project management
If your project lives in a long doc, nobody can see it. The card is the smallest visual unit that holds a project — here is how to use it.

Prem Sundaram
Sep 16


Mental clutter is why you can't focus
You are not bad at focusing. Your head is holding ninety-six open loops that have nowhere to live. The fix is not a focus app. It is a card.

Prem Sundaram
Sep 14


Best handwriting apps for Surface Pro
Six apps that earn a place on your Surface Pro if you actually want to write on it: a mandala app, OneNote, Microsoft Whiteboard, NoteDex, InkThink, and SketchBook Pro.

Prem Sundaram
Sep 11


A screenplay is not a document. It is a database of scenes.
Pages are what scenes look like when you print them. Scenes are what films are made of. The constraint is the gift.

Prem Sundaram
Sep 9


Stop Organizing Your Thoughts. Start Constraining Them.
Stop organizing your thoughts. Start constraining them. One card, one thought is not a productivity hack. It is the constraint that makes everything else work.

Prem Sundaram
Sep 7


How to Learn: Stop Collecting Information and Start Owning It
Reading is not learning. Taking notes is not learning. The fastest way to actually own a field is to teach it while you learn it, one card at a time.

Prem Sundaram
Sep 4


Why Your Meeting Notes Die After the Call
Meeting notes fail not because you take bad notes during the call, but because you never had a card to measure them against. Here is the NoteDex fix — a pre-call card, a meeting diff, and QuickNotes that survive.

Prem Sundaram
Sep 2


Taking Study Notes: 5 Shapes That Actually Work
Five note-taking methods that turn transcription into learning — Cornell, mapping, outline, chart, sentence. Pick one. Use it for a week.

Prem Sundaram
Aug 31


The index card method
I bought 300 index cards last month. The constraint forces the thinking. Here is how five kinds of cards can replace your notebook.

Prem Sundaram
Aug 28
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