Welcome to FS

Upgrade your thinking.

Farnam Street (FS) helps you master the best of what other people have already figured out.

Packed with timeless mental models, FS will teach you the mental tools you need to deal with whatever life throws at you.

Our readers include students, teachers, CEOs, coaches, athletes, artists, leaders, followers, politicians and more. They’re not defined by gender, age, income, or politics but rather by a shared passion for avoiding problems, making better decisions, and lifelong learning.

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FS has been featured in The New York Times, The Wall Street Journal, Financial Times, Entrepreneur, and more.

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Recent Articles

Focused and Diffuse: Two Modes of Thinking

October 14, 2019

Our brains employ two modes of thinking to tackle any large task: focused and diffuse. Both are equally valuable but serve very different purposes. To do your best work, you need to master both. *** As she lost consciousness of outer things…her mind kept throwing up from its depths, scenes, and names, and sayings, and […]

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The Best of Goethe’s Aphorisms

October 07, 2019

Johann Wolfgang von Goethe’s (1749–1832) Maxims and Reflections is a terrific source of philosophical wisdom. The German writer, statesman, lawyer, playwright, and polymath was brilliant at distilling complex questions and concepts into simple, reflective statements. His wisdom was derived from a life spent learning, thinking, and transmitting knowledge across a wide variety of fields. He crafted […]

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Externalities: Why We Can Never Do “One Thing”

September 30, 2019

No action exists in a vacuum. There are ripples that have consequences that we can and can’t see. Here are the three types of externalities that can help us guide our actions so they don’t come back to bite us. *** An externality affects someone without them agreeing to it. As with unintended consequences, externalities […]

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The Great Mental Models: General Thinking Concepts

The old saying goes, “To the man with a hammer, everything looks like a nail.” But anyone who has done any kind of project knows a hammer often isn’t enough.

The more tools you have at your disposal, the more likely you’ll use the right tool for the job — and get it done right.

The same is true when it comes to thinking. The quality of your outcomes depends on the mental models in your head. And most people are going through life with little more than a hammer.

Until now.

The Great Mental Models: General Thinking Concepts is the first book in The Great Mental Models series designed to upgrade your thinking with the best, most useful and powerful tools, so you always have the right one on hand.

This volume details nine of the most versatile, all-purpose mental models you can use right away to improve your decision making, productivity, and how clearly you see the world. You will discover what forces govern the universe and how to focus your efforts so you can harness them to your advantage, rather than fight with them or worse yet— ignore them.

Upgrade your mental toolbox and get the first volume today!


What People are Saying


I'm really glad this exists in the world and I can see that I will be recommending it often.

Matt Mullenweg

CEO of Automattic and founding developer of Wordpress

The Bible for better learning and decision making

Casey Herron on audible.com