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3B1B Logo.svg
The channel name and logo reference the color of Grant's right eye, which has blue-brown sectoral heterochromia.[1] It also symbolizes the channel's visual approach to math.
Personal information
BornGrant Sanderson
YouTube information
Years active5
Subscribers2.9 million
Total views143.6 million
Associated actsMinutePhysics, Vsauce, Numberphile
YouTube Silver Play Button 2.svg 100,000 subscribers 2016[2]
YouTube Gold Play Button 2.svg 1,000,000 subscribers 2018[2][3]
Updated June 24, 2020

3Blue1Brown is a math YouTube channel created by Grant Sanderson. The channel focuses on higher mathematics with a distinct visual perspective. Topics covered include linear algebra, calculus, neural networks, the Riemann hypothesis, Fourier transform,[4] quaternions and topology.[5] As of June 2020, the channel has 2.87 million subscribers.


Sanderson graduated from Stanford University in 2015 with a bachelor's degree in math. He worked for Khan Academy from 2015 to 2016, producing videos about multivariable calculus. After approximately one year, Sanderson quit, focusing full-time on 3Blue1Brown.[6]

3Blue1Brown started as a personal programming project in early 2015. In a podcast of Showmakers, Sanderson explained that he wanted to practice his coding skills and decided to make a graphics library in Python, which eventually became the open-source project "Manim" (short for mathematical animations). To have a goal for the project, he decided to create a video with the library and uploaded it to YouTube. On March 4, 2015, he uploaded his first video. He started to publish more videos and improve the graphics tool.[7]


Grant Sanderson animates educational mathematics videos with Manim (a Python animation library he wrote himself), with the exception of some 3D animations where he has used macOS's Grapher application.[8]

Sanderson has uploaded series on topics including linear algebra, calculus, differential equations, and neural networks. The channel has collaborated with MinutePhysics to make videos on quantum physics and orbital motion.[9][10] Two of the channel's videos have been featured in Popular Mechanics.[11][12]

Sanderson appeared on podcasts such as the Numberphile Podcast,[13] the Art of Problem Solving's AfterMath podcast,[14] Siraj Raval,[15] Lex Fridman,[16] and Showmakers.[17] Sanderson briefly hosted his own podcast called "Ben, Ben and Blue" with Ben Stenhaug and YouTuber Ben Eater.[18]


In August 2019, Sanderson delivered a keynote titled Concrete before Abstract at ODSC India. The talk outlines a principle he attempts to follow to make mathematics accessible.[19][20]

In January 2020, Sanderson delivered a talk in An Evening with Grant Sanderson, hosted by the Stanford Speakers Bureau.[21] Sanderson offered his perspective on engaging with math: instead of prioritizing usefulness, he emphasizes emotion, wonder and imagination. He aims to “bring life to math” with visuals, graphics, and animations.[22]

“When people engage with fiction, no one ever asks, ‘When am I going to use this?’ [...] The same thing fiction can do for people, so can math. There’s wonder and mystery — and once there’s a story, you can go behind the mechanics.”

Grant delivered a TEDx talk titled What Makes People Engage With Math on February 9, 2020. A 20-minute video of the talk was uploaded to YouTube on Pi Day of the same year.[23]


  1. ^ Grant Sanderson (B.S. '15), retrieved 2020-02-07
  2. ^ a b "3Blue1Brown Monthly YouTube Statistics - Socialblade.com". socialblade.com. Retrieved 2018-09-28.
  3. ^ "Grant Sanderson on Twitter". Twitter. Retrieved 2018-09-01.
  4. ^ Williams, Al, Fourier Explained: [3Blue1Brown] Style!
  5. ^ Kinney, Bill, Why Does Slicing a Cone Give an Ellipse?, retrieved 2020-02-07
  6. ^ "About the author". Archived from the original on 2020-05-26. Retrieved 2020-05-26.
  7. ^ "Grant Sanderson - 3Blue1Brown - Math Education & Programming Animation Software". Showmaker's. Jan 12, 2018. Archived from the original on 2019-07-12. Retrieved 2020-05-26.
  8. ^ "FAQ/Contact". 3Blue1Brown. Retrieved 2018-09-01.
  9. ^ 3Blue1Brown (2017-09-13), Some light quantum mechanics (with minutephysics), retrieved 2018-09-01
  10. ^ MinutePhysics (2018-07-20), Feynman's Lost Lecture (ft. 3Blue1Brown), retrieved 2018-09-01
  11. ^ "How Cryptocurrencies Really Work". Popular Mechanics. 2017-07-10. Retrieved 2018-09-01.
  12. ^ "A Nitty-Gritty Explanation of How Neural Networks Really Work". Popular Mechanics. 2017-10-06. Retrieved 2018-09-01.
  13. ^ Numberphile Podcast, The Hope Diamond (with 3blue1brown), retrieved 2019-08-22
  14. ^ Art of Problem Solving's AfterMath podcast, Becoming a Renowned YouTube Educator, with Grant Sanderson, retrieved 2020-02-07
  15. ^ Siraj Raval Podcast #3, 3Blue1Brown & Mathematics, retrieved 2019-08-22
  16. ^ Artificial Intelligence: AI Podcast, 3Blue1Brown and the Beauty of Mathematics, retrieved 2020-01-19
  17. ^ "Showmakers (podcast) episode 14: 3Blue1Brown - Math Education & Programming Animation Software". 2018-01-12.
  18. ^ Ben, Ben and Blue, Ben, Ben and Blue, retrieved 2020-02-07
  19. ^ Concrete before Abstract - ODSC India 2019, retrieved 2020-02-07
  20. ^ Open Data Science Conference India – The Largest Applied Data Science and AI Conference returns to India, retrieved 2020-02-07
  21. ^ Wei, Patricia, 3Blue1Brown creator Grant Sanderson ’15 talks engaging with math using stories and visuals
  22. ^ Kapadia, Huzefa, EP 159: 3Blue1Brown on How to Show the Natural Beauty of Mathematics
  23. ^ "What Makes People Engage With Math | Grant Sanderson | TEDxBerkeley". YouTube.

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