diff --git a/README.md b/README.md
index 7660b76..3da547b 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,5 @@ This is a project where I learn how a raytracer works by building one.
 
 ### Resources Used
 [_Ray Tracing in One Weekend_](https://raytracing.github.io/books/RayTracingInOneWeekend.html)
+
+[_Ray Tracing: The Next Week_](https://raytracing.github.io/books/RayTracingTheNextWeek.html)
\ No newline at end of file