<http://schema.org/description>
"We've been hearing chitter-chatter of late that an update to iBooks is coming that will add &amp;quot;folders&amp;quot; or &amp;quot;collections&amp;quot; as well as being able to print and email PDF ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apple/2010/11/27/folders-printing-and-email-coming-to-ibooks-soon/>