Some Books You Just Can't Let Go

I was looking at a line of books earlier on one of our shelves and
noticed a favorite of mine.

The book is "The National Gallery Address Book." That's right, it's 
an address book, one I have never written a word in. I found it 
roughly fifteen years ago on a bargain stand for a buck fifty. 
It's 8 inches tall and 10 inches wide, with beautiful cover art by 
Canaletto, "Interior of the Rotunda at Ranelagh." But you wouldn't 
know that by just opening the cover, because when you open the 
cover and pass over the first completely blank page, you next 
stumble onto a page that starts with an X and several letters 
upside down.

Every bit of art, which begins every letter, and every address and 
note page are printed upside down, or right side up if you turn the 
book over and upside down. I thought what a strange find and 
easily paid for it. I may never write in it. My other address book 
is still working fine.

Who else has books like these in their library?