Because that shelf doesn't look very "sound."
Funny, everything written by Dan Brown doesn't have enough substance.
Argentinian artist Raul Lemesoff constructed a reading tank to spread the word... or words, if you please.
He uses this to read books online. Ironically. ~Not-So-Handy Andy
Another possible solution: The Dark Tower. You just might not want to read the ending though, lest your anger cause you to topple your creation.
Spoiler Alert Everyone dies. ~Not-So-Handy Andy