diff --git a/src/main/docbkx/book.xml b/src/main/docbkx/book.xml
index 7ee603e8319..32094814b17 100644
--- a/src/main/docbkx/book.xml
+++ b/src/main/docbkx/book.xml
@@ -182,6 +182,70 @@
+
+ Namespace
+
+ A namespace is a logical grouping of tables analogous to a database in relation database
+ systems. This abstraction lays the groundwork for upcoming multi-tenancy related features:
+
+ Quota Management (HBASE-8410) - Restrict the amount of resources (ie
+ regions, tables) a namespace can consume.
+ Namespace Security Administration (HBASE-9206) - provide another
+ level of security administration for tenants.
+ Region server groups (HBASE-6721) - A namespace/table can be
+ pinned onto a subset of regionservers thus guaranteeing a course level of
+ isolation.
+
+
+
+ Namespace management
+
+ A namespace can be created, removed or altered. Namespace membership is determined during
+ table creation by specifying a fully-qualified table name of the form:
+
+ <table namespace>:<table qualifier>
+
+
+ Examples:
+
+
+#Create a namespace
+create_namespace 'my_ns'
+
+#create my_table in my_ns namespace
+create 'my_ns:my_table', 'fam'
+
+#delete namespace
+delete_namespace 'my_ns'
+
+#alter namespace
+alter_namespace 'my_ns', {METHOD => 'set', 'PROPERTY_NAME' => 'PROPERTY_VALUE'}
+
+
+
+
+ Predefined namespaces
+
+ There are two predefined special namespaces:
+
+ hbase - system namespace, used to contain hbase internal tables
+ default - tables with no explicit specified namespace will automatically
+ fall into this namespace.
+
+
+
+ Examples:
+
+#namespace=foo and table qualifier=bar
+create 'foo:bar', 'fam'
+
+#namespace=default and table qualifier=bar
+create 'bar', 'fam'
+
+
+
+
+