Lipogram

How quickly can you find out what is unusual about this paragraph?  It looks so ordinary that you would think that nothing is wrong with it at all-- and, in fact, nothing is.  But it is a bit odd. Why?  If you study it and think about it, you may find out, but I am not going to assist you in any way.  You must do it without any coaching.  No doubt, if you work at it for long, it will dawn on you.  Who knows?

Answer:   This text is a so-called "lipogram"
It does not have the letter "e" in it.
Gadsby (by E.V. Wright, 1939)
goes 50,000 words without any e's.
Georges Perec's La disparition (1969)
and its 1994 English translation A Void
(by Gilbert Adair) are both about 300 pages.