object hierarchy. Pickling (and unpickling) is alternatively known as
``serialization'', ``marshalling,''\footnote{Don't confuse this with
the \refmodule{marshal} module} or ``flattening'',
-however the preferred term used here is ``pickling'' and
-``unpickling'' to avoid confusing.
+however, to avoid confusion, the terms used here are ``pickling'' and
+``unpickling''.
This documentation describes both the \module{pickle} module and the
\refmodule{cPickle} module.