If your house was burning to the ground and you could save only one book (instructional) What would it be?

My notebook - its got all my instructionals on it.

The list of dl links to all instructionals.

my hard drive has been wiped out several times and ive lost all sorts of instructionals...it really gets annoying. I have all the ebooks on cd now, but only a handful of my vids have gotten burned onto dvd. I really like my saulo ribiero instructionals and dinosaur strength training books.