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+# Included Libraries
+
+All packages can `require` the following popular libraries in their packages:
+
+* [SpacePen](https://github.com/nathansobo/space-pen) (as `require 'space-pen'`)
+* [jQuery](http://jquery.com/) (as `require 'jquery'`)
+* [Underscore](http://underscorejs.org/) (as `require 'underscore'`)
+
+You can get an idea of the full list by browsing Atom's _node_modules_ folder.