Author J K Rowling wrote the final chapter of the last Harry Potter book in "something like 1990", seven years before the release of the first book.
7
Critic Michael Crowley gave such a poor review of one of author Michael Crichton's books that, in his next book, Crichton made a character 'Mick Crowley' who was a child molester with a small penis.
18
A man with locked-in syndrome, named Jean-Dominique Bauby, wrote an entire book by blinking his left eyelid.
11
Mathematical proof that 1+1=2 takes 162 pages to explain in the three volume work “Principia Mathematica”.
35
Amazon sells more e-books than printed books.
44
There's a children's book titled "Where Willy Went" detailing the adventures of a sperm.
22