diff --git a/docs/source/theory/interfaces.rst b/docs/source/theory/interfaces.rst
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+Kapow! HTTP Interfaces
+======================
+
+User Interface
+--------------
+
+The User HTTP interface is used to serve final user requests.
+
+By default is bind to address `0.0.0.0` and port `8080`.
+
+
+Control Interface
+-----------------
+
+The Control HTTP interface is used by the command `kapow route` to
+administer the list of system routes.
+
+By default is bind to address `127.0.0.1` and port `8081`.
+
+
+Data Interface
+--------------
+
+The Data HTTP interface is used by the commands `kapow get` and `kapow
+set` to exchange the data for a particular request.
+
+By default is bind to address `127.0.0.1` and port `8082`.
diff --git a/docs/source/theory/philosophy.rst b/docs/source/theory/philosophy.rst
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diff --git a/docs/source/theory/request_life_cycle.rst b/docs/source/theory/request_life_cycle.rst
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+Request Life Cycle
+==================
+
+This section describes the sequence of events happening for each request
+answered by the User HTTP Interface.
+
+
diff --git a/docs/source/theory/resource_tree.rst b/docs/source/theory/resource_tree.rst
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+The Resource Tree
+=================
+
+