diff --git a/extras/readings.md b/extras/readings.md
index 04aa30a..e245feb 100644
--- a/extras/readings.md
+++ b/extras/readings.md
@@ -23,6 +23,7 @@ Name | Author(s)
 [The Pragmatic Programmer](https://www.amazon.com/Pragmatic-Programmer-Journeyman-Master/dp/020161622X) | Andrew Hunt, David Thomas
 [Programming Languages: Application and Interpretation](http://cs.brown.edu/~sk/Publications/Books/ProgLangs/) | Shriram Krishnamurthi
 [Programming and Programming Languages](https://papl.cs.brown.edu/2018/) | Shriram Krishnamurthi, Benjamin S. Lerner, Joe Gibbs Politz
+[Competitive Programming](https://cpbook.net/) | Steven Halim, Felix Halim
 
 ## Math