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paulgraham.com~14 min read

TL;DR — Great work requires finding something you have natural aptitude for and genuine curiosity about, then pursuing it with unusual persistence.

How to Do Great Work

If you collected lists of techniques for doing great work in many different fields, what would the intersection look like? I decided to find out by making it.

The first step is to decide what to work on. The work you choose needs to have three qualities: it has to be something you have a natural aptitude for, that you have a deep interest in…

How it works

One click. On your Kindle in 30 seconds.

Click the extension

While you're on any article, blog post, or long read — click the readleaf icon in your Chrome toolbar. That's the entire interaction.

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AI extracts & summarizes

Readability strips ads and clutter. Claude writes a 3-sentence TL;DR and injects it at the top so you remember why you saved it.

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Packaged as EPUB3

The article becomes a clean EPUB3 file — the format Kindle natively supports. Proper typography, chapter structure, metadata.

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Delivered instantly

Emailed to your @kindle.com address. Appears on your device within 30 seconds. Kobo supported too — same flow, different address.

Why readleaf

Not just another send-to-Kindle tool.

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AI summary on every article

Every article gets a 3-sentence TL;DR injected before the body text. When you open something you saved two weeks ago, you immediately know why it was worth saving. No competitor does this.

Exclusive feature

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Native EPUB3 — not legacy formats

Most send-to-Kindle tools still output older formats. readleaf is built EPUB3-first — cleaner rendering, better typography on modern Kindles and Kobos.

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Free where others paywall

KTool starts at $4.50/mo. Instapaper just locked Kindle delivery behind $6/mo. readleaf gives you 25 free articles a month — enough to know if you love it before paying anything.

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Kindle and Kobo

Most tools are Kindle-only. Kobo users lost their read-later pipeline when Pocket shut down. readleaf supports both from day one — same flow, same quality.

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Newsletter forwarding

Forward any newsletter to your unique @readleaf.io address and it lands on your Kindle as a clean digest. Available on the Reader plan — the feature Instapaper just paywalled.

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Send files to your device

Upload any EPUB or PDF and send it straight to your Kindle or Kobo. Perfect for eARCs from NetGalley, fanfic from AO3, or any document you want to read on e-ink.

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Pocket shut down

Mozilla shut down Pocket in January 2025, ending the read-later tool millions relied on to send articles to Kindle and Kobo.

Gone Jan 2025

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Instapaper paywalled

Instapaper locked Send to Kindle behind a $6/month subscription in February 2026. A feature that used to be free, now isn't.

Paywalled Feb 2026

readleaf fills the gap

Free Send to Kindle. Native EPUB3. AI summary on every article. Newsletter forwarding. File upload for EPUBs and PDFs. No paywall on the basics. Kindle + Kobo.

Free to start

Read the web on your Kindle. Finally, properly.

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