diff --git a/books/free-programming-books-langs.md b/books/free-programming-books-langs.md
index 1593ff154..d044d96ba 100644
--- a/books/free-programming-books-langs.md
+++ b/books/free-programming-books-langs.md
@@ -648,6 +648,7 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE
 
 ### DBMS
 
+* [Data Management for Analytics and Applications (2021)](https://bookdown.org/kokkodis/book/) - Marios Kokkodis
 * [Database Management Systems eBooks For All Edition](http://www.lincoste.com/ebooks/english/pdf/computers/database_management_systems.pdf) (PDF)
 
 
@@ -2044,6 +2045,7 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE
 * [Efficient R programming](https://csgillespie.github.io/efficientR/) - Colin Gillespie, Robin Lovelace
 * [Forecasting: Principles and Practice](https://otexts.com/fpp3/) - Rob J Hyndman, George Athanasopoulos
 * [Functional Programming](https://dcl-prog.stanford.edu) - Sara Altman, Bill Behrman, Hadley Wickham
+* [Geocomputation with R](https://geocompr.robinlovelace.net) - RobinLovelace, Jakub Nowosad, Jannes Muenchow
 * [Introduction to Probability and Statistics Using R](https://github.com/gjkerns/IPSUR) - G. Jay Kerns (PDF)
 * [Learning Statistics with R](https://learningstatisticswithr.com/book/) - Danielle Navarro
 * [Mastering Software Development in R](https://bookdown.org/rdpeng/RProgDA/) - Roger D. Peng, Sean Kross, and Brooke Anderson