diff --git a/books/free-programming-books-subjects.md b/books/free-programming-books-subjects.md
index 7f9decda339dc..1ee05ee3eec6c 100644
--- a/books/free-programming-books-subjects.md
+++ b/books/free-programming-books-subjects.md
@@ -301,6 +301,7 @@ Books that cover a specific programming language can be found in the [BY PROGRAM
 * [Introduction to Data Science in Python](https://www.coursera.org/learn/python-data-analysis) - Christopher Brooks (University of Michigan) (Coursera)
 * [Julia Data Science](https://juliadatascience.io) - Jose Storopoli, Rik Huijzer, Lazaro Alonso (HTML) (CC BY-NC-SA 4.0)
 * [Mining of Massive Datasets](http://infolab.stanford.edu/~ullman/mmds/book.pdf) - Jure Leskovec, Anand Rajaraman, Jeffrey D. Ullman (PDF)
+* [Principles of Data Science](https://openstax.org/details/books/principles-data-science) - OpenStax (HTML, PDF) Dr. Shaun V. Ault
 * [Probability and Statistics with Examples using R](https://www.isibang.ac.in/~athreya/psweur/index.html#usage) - Siva Athreya, Deepayan Sarkar, Steve Tanner (HTML) *( :construction: *in process*)*
 * [Python for Data Science – Hands-on Projects](https://www.youtube.com/watch?v=vaMMLLf0wLM) - LunarTech (freeCodeCamp) (YouTube)
 * [School of Data Handbook](https://schoolofdata.org/handbook/)