--- a/maven.rst	Mon Oct 22 16:30:31 2012 +0300
+++ b/maven.rst	Mon Oct 22 16:32:11 2012 +0300
@@ -22,3 +22,16 @@
 
  * https://repository.sonatype.org/
 
+Get help on Maven plug-in.
+==========================
+::
+
+  $ mvn help:describe -DartifactId=maven-war-plugin -DgroupId=org.apache.maven.plugins
+  $ mvn help:describe -Dcmd=dependency:resolve -Ddetail
+
+  $ mvn dependency:tree
+  $ mvn dependency:list
+  $ mvn dependency:resolve
+
+  $ mvn -X ...
+