diff --git a/README.md b/README.md
index 59512cf..089d6d5 100644
--- a/README.md
+++ b/README.md
@@ -613,6 +613,7 @@ A curated list of awesome C++ (or C) frameworks, libraries, resources, and shiny
 * [GLM](https://github.com/g-truc/glm) - Header-only C++ math library that matches and inter-operates with OpenGL's GLSL math. [MIT] [website](https://glm.g-truc.net/)
 * [GMTL](http://ggt.sourceforge.net/) - Graphics Math Template Library is a collection of tools implementing Graphics primitives in generalized ways. [GPL2]
 * [GMP](https://gmplib.org/) - A C library for arbitrary precision arithmetic, operating on signed integers, rational numbers, and floating-point numbers. [LGPL3 & GPL2]
+* [Klein](https://github.com/jeremyong/klein) - A fast, SIMD-optimized C++17 Geometric Algebra library for point, line, and plane projections, intersections, joins, rigid-body motion, and more. [MIT] [website](https://jeremyong.com/klein)
 * [linalg.h](https://github.com/sgorsten/linalg) - Single header, public domain, short vector math library for C++. [Unlicense]
 * [MIRACL](https://github.com/CertiVox/MIRACL) - A Multiprecision Integer and Rational Arithmetic Cryptographic Library. [AGPL]
 * [muparser](http://beltoforion.de/article.php?a=muparser) - muParser is an extensible high performance math expression parser library written in C++. [MIT]