A book called 'Hidden Dangers of the World'

  At least if it were written,  as I have seen suggested its practical to the degree of being useless, and it seems if it were useful to the degree of common knowledge, one should wonder if ever a purpose were served any longer where anything dangerous were no longer hidden.  Though one might have asked, 'Are there hidden dangers in the world?'  The sorts of dangers that are common knowledge but only extend so far.  I wonder of this myself in a way, or if anyone has compiled a travel book that contained the passages clearly as an emphatic warning, "DO NOT...I REPEAT... DO NOT TRAVEL THERE."  Sure the State Department issues its sets of warnings which given any reading of news might be understood...'Oh yes, such and such has been in a civil war for a few months now, government territories are far less secure and so forth...'.  Though I speak of the book of black books, a rather secretive book only known to a few.  The book were a sort of society/civilization survival manual.  What not to say, what to say, what not to do, what to do.  What not to wear.  How not to act. Though the book were certain to send, perhaps, some into a depression, its reading like having awoken into the world.  Though it seems in a way like a sad horror novel in the works, doesn't it?

Hidden Dangers of the World, survive them all.
Never be left coldly in the dark.
Hidden Dangers of the World,
the world isn't as it appears.