Paul Graham

Founder — Y Combinator

Profile

Paul Graham is a programmer, essayist, and investor who co-founded Y Combinator in 2005 with Jessica Livingston, Robert Morris, and Trevor Blackwell. Before YC, he and Morris built Viaweb — one of the first web applications — which Yahoo acquired in 1998 and rebranded as Yahoo Store. That experience, and his conviction that the best way to help founders was to fund many small companies at once with standard terms, became the template for YC.

Under Graham and later Sam Altman, YC became the most influential startup accelerator in the world. Its alumni include Stripe, Airbnb, Dropbox, Reddit, Coinbase, DoorDash, Instacart — and OpenAI, which was seeded through YC Research during Altman’s tenure as president. Graham stepped back from day-to-day operations in 2014 and now lives in England, writing full-time.

For developers, though, Graham’s real output isn’t the companies — it’s the essays. For more than two decades he’s written long-form pieces on paulgraham.com in plain HTML, no newsletter, no paywall, no images. They range across Lisp, startups, cities, taste, schooling, and what it means to do serious work. Founders quote him the way earlier generations quoted management books. His prose is clear, opinionated, and deliberately unfashionable.

The AI angle is twofold. YC funded the entity that became the defining AI lab of the era. And Graham himself has turned his attention to what LLMs mean for writing and thinking — arguing that since writing is thinking, a world where AI writes for most people is a world where most people no longer think clearly. For Marc Andreessen-flavored optimism this is uncomfortable reading; for anyone building AI tools for knowledge workers, it’s worth sitting with.

Books

Hackers & Painters: Big Ideas from the Computer Age A collection of essays on programming, startups, and the craft of making things — the book that introduced most of his famous early ideas. On Lisp A deep dive into Lisp macros and bottom-up programming, released free online. Required reading if you want to understand why Graham thinks the way he does about languages. ANSI Common Lisp An introduction to Common Lisp that doubles as a quiet argument for why powerful languages matter.

Key Articles & Papers

Hackers and Painters 2003 — The argument that programmers are makers, not scientists — and should be judged by what they build, not what they prove. Maker's Schedule, Manager's Schedule 2009 — Why a single meeting can destroy a programmer's afternoon. One of the most-cited essays in modern tech. Do Things That Don't Scale 2013 — The YC mantra. Early-stage startups should hand-recruit users, not optimize funnels. How to Do Great Work 2023 — His longest essay — a synthesized account of what it takes to do serious original work, in any field. Founder Mode 2024 — A short essay, based on a talk by Airbnb's Brian Chesky, that kicked off a genuine industry-wide debate about how founders should run scaling companies. Writes and Write-Nots 2024 — His direct take on LLMs: writing is thinking, so outsourcing writing to AI means outsourcing thinking. A useful counterweight when you're building with AI. Beating the Averages 2001 — The Viaweb story and the 'Blub paradox' — why most programmers can't see the expressive power of languages above their own. How to Start a Startup 2005 — The original talk that seeded YC. Still the most concise statement of the founder playbook. Life is Short 2016 — A brief essay on prioritizing what actually matters. Frequently cited, rarely improved upon. The Age of the Essay 2004 — Why the essay is the right form for thinking in public — and why the school essay ruined it for most people.

Controversies

Graham is active on Twitter/X and his remarks there have periodically drawn heat. His 2016 essay Economic Inequality was widely attacked for arguing that inequality caused by startups was morally distinct from other forms — critics read it as a self-serving defense of his own asset class. He’s also been criticized over the years for comments on accents, gender representation among founders, and remote work. He engages with the pushback rather than deleting, which some read as honesty and others as stubbornness. None of this has materially dented his influence on how founders talk about building companies.