Why doesn't book alllow info?

["Jean Jordaan" <jean.jordaan@gmail.com>]

Hi there

At http://www.docbook.org/docs/howto/
I see 'info' listed as a replacement for 'bookinfo' among others.

However at http://www.docbook.org/tdg5/en/html/titlereq.info.html
the allowed parents of 'info' do not include 'book'. Also XMLMind
Editor doesn't allow 'info' in 'book'.
The info about a book is different from that about the preface or a
chapter. So how to do the equivalent of 'bookinfo'?

-- 
jean                                  . .. .... //\\\oo///\\