All that is required for evil to triumph is for good men to read nothing
Okay, how precisely would you go about committing an act of terrorism using only a paperback book? For the purposes of the exercise, you have to use the physical object, not its informational contents (so e.g. "Buying a paperback book on how to make bombs and following the instructions therein" would be instantly disqualified). You are allowed to pre-prepare the book using other items, but you'll get bonus points for making suggestions which would work with an unprepared book, e.g. the surprisingly unreadable Dan Brown novel that you've just bought in the duty-free.
My favourite suggestion wins a potentially-lethal pair of nailclippers. (I reserve the right not to award the prize if your suggestions all turn out to be variations on a theme of papercuts, but I trust you'll do better than that, won't you, chaps?)
ObMeta-X-spook: Delta Force Semtex $400 million in gold bullion fissionable arrangements Noriega Honduras Ortega assassination Saddam Hussein Qaddafi explosion Kennedy Nazi World Trade Center