diff --git a/lib/rackstash/fields.rb b/lib/rackstash/fields.rb
index f408fe4..8c9d35a 100644
--- a/lib/rackstash/fields.rb
+++ b/lib/rackstash/fields.rb
@@ -3,6 +3,20 @@
 # This software may be modified and distributed under the terms
 # of the MIT license. See the LICENSE.txt file for details.
 
+module Rackstash
+  # Fields are specialized data storage classes which ensure consistent and
+  # strictly normalized data. They are used to store additional information
+  # besides just log messages in a {Buffer}.
+  #
+  # Field classes are modeled after classes in Ruby core and generally provide
+  # the exact interface and semantics with the notable exception that the
+  # classes always ensure that any store data is directly mappable to JSON. As
+  # such, all stored data is always normalized in insert and converted to the
+  # respective base-types.
+  module Fields
+  end
+end
+
 require 'rackstash/fields/abstract_collection'
 require 'rackstash/fields/hash'
 require 'rackstash/fields/array'