diff --git a/books/README.md b/books/README.md
index 141e912..d96bb23 100644
--- a/books/README.md
+++ b/books/README.md
@@ -8,6 +8,11 @@ Kim, S. [Deep Learning Models](https://github.com/DeepSE/deeplearning-models)
 
 Howard, J. and Gugger, S. [Deep Learning for Coders with Fastai and Pytorch: AI Applications Without a PhD](https://github.com/fastai/fastbook)
 
+## Convex Optimization for Everyone
+
+- [online book](https://convex-optimization-for-all.github.io/)
+- [github repo](https://github.com/convex-optimization-for-all/convex-optimization-for-all.github.io)
+
 ## Helpful repos
 
 ### KakaoBrain - NLP paper reading