All,
A few of the guides are online at Google Books, others are still processing.
Getting Started with LibreOffice 4.0
http://books.google.com/books/about?id=8IYXAwAAQBAJ
LibreOffice 4.0 Writer Guide: Word Processing With Style
http://books.google.com/books/about?id=CEgYAwAAQBAJ
LibreOffice 4.0 Math Guide: Using The Equation Editior
http://books.google.com/books/about?id=pVcYAwAAQBAJ
Please take a look and of course feel free to write reviews, add to favorites
or add to your reading list!
Tim