diff --git a/Seaweed-Message-Queue.md b/Seaweed-Message-Queue.md
index 62d794d..5a26424 100644
--- a/Seaweed-Message-Queue.md
+++ b/Seaweed-Message-Queue.md
@@ -1,5 +1,11 @@
 # Introduction
 
+Seaweed Message Queue has 
+* Structured message : all messages need to have a schema
+* Streamed publishing with async acknowledgements
+* Messages are stored in Parquet files, for both streaming and batch reading.
+* Unlimited storage.
+
 # Architecture
 
 The structured messages are published to message brokers, persisted in SeaweedFS, and consumed by message subscribers. To simplify client libraries, a messaging agent with gRPC APIs is introduced, enabling easier client libraries for message publishing and subscribing.