diff --git a/README.md b/README.md
index c2e0d5a..a875e31 100644
--- a/README.md
+++ b/README.md
@@ -64,6 +64,10 @@ FAQ
 
     Use `loc=auto` in SQLite3 filename schema like `file:foo.db?loc=auto`.
 
+* Can use this in multiple routines concurrently?
+
+    Yes for readonly. But, No for writable. See #50, #51, #209.
+
 License
 -------