Forgive me if this has already propagated .. I did a search for "Developing Network" and didn't see reference to it.
Free Creative Commons licensed, quite excellent eBook here: http://wndw.net/download.html
for reading: http://wndw.net/pdf/wndw-ebook.pdf
for printing: http://wndw.net/pdf/wndw-print.pdf
mods: please redirect this to the appropriate forum if desired.. this is the first and only applicable one that I had permission to post in. thanksya