diff --git a/docs/04-multiple-components.md b/docs/04-multiple-components.md
index b69312af..3c9b3ad3 100644
--- a/docs/04-multiple-components.md
+++ b/docs/04-multiple-components.md
@@ -73,7 +73,7 @@ When you create a React component instance, you can include additional React com
 <Parent><Child /></Parent>
 ```
 
-`Parent` can read its children by accessing the special `this.props.children` prop.
+`Parent` can read its children by accessing the special `this.props.children` prop. **`this.props.children` is an opaque data structure:** use the [React.Children utilities](/react/docs/top-level-api.html#react.children) to manipulate them.
 
 
 ### Child Reconciliation
diff --git a/tips/07-children-props-type.md b/tips/07-children-props-type.md
index 34a77ef5..16edcce5 100644
--- a/tips/07-children-props-type.md
+++ b/tips/07-children-props-type.md
@@ -49,3 +49,5 @@ var GenericWrapper = React.createClass({
 
 React.renderComponent(<GenericWrapper>hello</GenericWrapper>, mountNode);
 ```
+
+To make `this.props.children` easy to deal with, we've provided the [React.Children utilities](/react/docs/top-level-api.html#react.children).