Emacs with the book/cd "GNU Software For Windows"?

[Steve]

Hi;

I was thinking about buying the book

"GNU Software for MS-Windows and MS-DOS and Compatible Systems (2nd
edition) (book with CD)"

from gnu at:
http://www.gnu.org/doc/windows.html

I was wondering if anyone had this book and would know if it has the
latest version of emacs.

The link above looks a bit dated.  I was wondering if the software was
maintained with the latest, greatest that gnu has.

BTW, is the cygwin the same as you would get it elsewhere ( redhat etc
)?

How much space does it require?

Is it very difficult to install xwindows on top of that?

Steve