The book world is very rich, diverse and interesting.
There are many unique publications that have been able to gain recognition for their own exclusivity.
Not all writers and poets manage to gain wide popularity even if they are objectively talented. However, the famous Agatha Christie managed to do so.
The "queen" of detective stories manages to remain the best-selling author in history.
To date, more than two billion Agatha Christie books have been sold.
As it turns out, the cost of the most expensive book in the world will surprise anyone. More than seven million dollars were paid for it at auction.
The publication of Geoffrey Chaucer's "Canterbury Tales" was so highly rated. The value of the publication is that it is, perhaps, the first notable printed publication in Great Britain.
It is noteworthy that one of Abraham Lincoln's letters was sold at auction for more than 700 thousand dollars. The letter is dated 1863.