Intel has a "literature fulfillment" program where you could order hard copy manuals by SKU. It seems they've phased this out in favour of PDFs on a CD.
http://i.imgur.com/odqvETR.jpg
I believe I got all 3 volumes/5 books around 2008, each being hundreds of pages thick, thousands in total. The one I'm missing is the optimization reference, but that's what they look like (not my photo).
And it was free for me, including shipping to Canada. It might be worth a shot to see if they've started it up again.