Strange Observations.

Have you ever noticed the strange things that are printed behind long books that we people generally use,well,petty as it may seem I have had the strange habit of following the strange facts and sayings that are printed there.......and not just that I have made an extensive study of this stuff........
When I was in class four,I started noticing the printed stuff behind books ,at that time I guess in 1999 and 2000,these book makers started the "millenium" editions and the hundred year calendars were suddenly famous,we kids had a lot of fun just to see on what weekday would we have our birthday in 2078 and similar things......
In class five-six,the trend started to change,the books started to carry the"strange facts" or "did you know?" sections where strangest of facts could be found,for e.g leech has 32 brains,man can float in the dead sea for a year before dying of dehydration and stranger facts..........some boring ones talked of sports like the fastest swimmer on earth or the first person to cross the english channel......others sang of the animal kingdom like a crocodile can regenerate its teeth throughout life or earthworms are blind.........while some chose urban legends...like the no. of TV sets brought in US every yesr or the biggest french fry ever made.........the list is endless......
Then in class seven-eight,came the "environmental"period....book covers carried badly photoshoped images of far off fantasy lands and unimaginable greenery ....the "ecobuddy" concept was born....."take pride you saved a tree today" was printed on the last page and the forementioned crapola was replaced by procceses through which sugarcane product bagesse was used to make paper and how we make the right choice by buying that book,convinently forgetting the inclusion of sugarcane in the plant kingdom and making a chutya out of those who believed that crap.......
Years rolled on the trend was set by the bollywood flick Dhoom....the book covers were adorned with sleek n mean bikes and subsequently cars,,,,some even showed modern state of the art buildings....and a parallel trend generated too....that of bollywood celebrities on book covers......while the writings changed too....info about supercars and superbikes was given along with its engine design..for eg.engine eight cylindered dual layered.1234 rpm,four way hadre axle.........like a student understands all that crap....and with a set of twelve books you got a poster free.........
So far so good....my trendspotting didn't end there.....some random trends are still in...for eg.....nobrl lauretes ,etc..................
But one thing stays the small label behind the book giving the printer's name and the no. of pages..........