diff --git a/lib/capybara/node/simple.rb b/lib/capybara/node/simple.rb
index a6ac7338..387ce82d 100644
--- a/lib/capybara/node/simple.rb
+++ b/lib/capybara/node/simple.rb
@@ -1,5 +1,16 @@
 module Capybara
   module Node
+
+    ##
+    #
+    # A {Capybara::Node::Simple} is a simpler version of {Capybara::Node::Base} which
+    # includes only {Capybara::Node::Finders} and {Capybara::Node::Matchers} and does
+    # not include {Capybara::Node::Actions}. This type of node is returned when
+    # using {Capybara.string}.
+    #
+    # It is useful in that it does not require a session, an application or a driver,
+    # but can still use Capybara's finders and matchers on any string that contains HTML.
+    #
     class Simple
       include Capybara::Node::Finders
       include Capybara::Node::Matchers
@@ -11,10 +22,23 @@ module Capybara
         @native = native
       end
 
+      ##
+      #
+      # @return [String]    The text of the element
+      #
       def text
         native.text
       end
 
+      ##
+      #
+      # Retrieve the given attribute
+      #
+      #     element[:title] # => HTML title attribute
+      #
+      # @param  [Symbol] attribute     The attribute to retrieve
+      # @return [String]               The value of the attribute
+      #
       def [](name)
         attr_name = name.to_s
         if attr_name == 'value'
@@ -26,14 +50,28 @@ module Capybara
         end
       end
 
+      ##
+      #
+      # @return [String]      The tag name of the element
+      #
       def tag_name
         native.node_name
       end
 
+      ##
+      #
+      # An XPath expression describing where on the page the element can be found
+      #
+      # @return [String]      An XPath expression
+      #
       def path
         native.path
       end
 
+      ##
+      #
+      # @return [String]    The value of the form element
+      #
       def value
         if tag_name == 'textarea'
           native.content
@@ -49,6 +87,13 @@ module Capybara
         end
       end
 
+      ##
+      #
+      # Whether or not the element is visible. Does not support CSS, so
+      # the result may be inaccurate.
+      #
+      # @return [Boolean]     Whether the element is visible
+      #
       def visible?
         native.xpath("./ancestor-or-self::*[contains(@style, 'display:none') or contains(@style, 'display: none')]").size == 0
       end