*Nervously grabs several books from his shelf and flips through them to check for parasites. *
...
Hmmm, I don't see any parasites..
*Carefully examines the covers, the spine, the bindings of the books, looks closely at the first several pages and the Last several pages*
....
Still nothing.
But wait!  I do remember that some of my clothes were infected with a similar parasite.  I remember one of those tapeworms stuck inside a new pair of pants I bought a couple of months ago!   
