diff --git a/README.md b/README.md
index da2b31e6c..ba1c06b8d 100644
--- a/README.md
+++ b/README.md
@@ -115,6 +115,7 @@ Top must-join communities for ML:
   - [Responsive](https://www.responsive.dev/)
   - [RisingWave](https://risingwave.com/)
   - [Striim](https://www.striim.com/)
+  - [Timeplus](https://www.timeplus.com/)
 - Data Lineage
   - [OpenLineage](https://openlineage.io/)
 
diff --git a/books.md b/books.md
index 405413549..345026906 100644
--- a/books.md
+++ b/books.md
@@ -7,6 +7,7 @@
 - [Data Mesh](https://www.oreilly.com/library/view/data-mesh/9781492092384/)
 - [Machine Learning System Design Interview](https://www.amazon.com/Machine-Learning-System-Design-Interview/dp/1736049127)
 - [Streaming Systems](https://www.amazon.com/Streaming-Systems-Where-Large-Scale-Processing/dp/1491983876)
+- [Streaming Databases: Unifying Batch and Stream Processing](https://www.amazon.com/Streaming-Databases-Unifying-Stream-Processing/dp/1098154835)
 - [High Performance Spark](https://www.amazon.com/High-Performance-Spark-Practices-Optimizing/dp/1491943203)
 - [Spark: The Definitive Guide](https://www.oreilly.com/library/view/spark-the-definitive/9781491912201/)
 - [Learning Spark](https://www.oreilly.com/library/view/learning-spark/9781449359034/)