diff --git a/extras/readings.md b/extras/readings.md
index b9b86c0..4a7206d 100644
--- a/extras/readings.md
+++ b/extras/readings.md
@@ -73,6 +73,8 @@ Name | Author(s)
 [An Introduction to Information Retrieval](https://nlp.stanford.edu/IR-book/pdf/irbookonlinereading.pdf) | Christopher D. Manning, Prabhakar Raghavan, Hinrich Schütze
 [Computer Science: An interdisciplinary approach](https://introcs.cs.princeton.edu/java/cs/) | Robert Sedgewick, Kevin Wayne
 [DSA CS3: Data Structures & Algorithms](https://opendsa-server.cs.vt.edu/OpenDSA/Books/CS3/html/) ([Coursenotes](https://opendsa-server.cs.vt.edu/OpenDSA/Books/CS3notes/html/) - [Slides](https://opendsa-server.cs.vt.edu/OpenDSA/Books/CS3slides/html/)) | The OpenDSA Project (supported by National Science Foundation)
+[Algorithms](https://jeffe.cs.illinois.edu/teaching/algorithms/) | Jeff Erickson
+[A Taste of Category Theory for Computer Scientists](https://people.csail.mit.edu/jgross/personal-website/papers/academic-papers-local/repository.cmu.edu__cgi__viewcontent.cgi_article=2846_context=compsci.pdf) | Benjamin C. Pierce
 
 ## Applications