how the camel got his hump is the most popular story
story of tracy beaker :)
the story of Tracy beaker, of course!
Probably Romance because in whatever type of book it is, the story always has some type of Romance in it.
I believe that the most popular book out of the Twilight saga by: Stephanie Meyer is either the first book of the trilogy: Twilight or the final book in the Twilight saga: Breaking Dawn, but that is just my opinion to other people I may be wrong.
Among kids..... "Kensuke's Kingdom" or "The Amazing Story of Adolphus Tips"Among adults...... "Waiting for Anya".All three are heavily decorated with international awards.All three are among my top 10 books.Michael morpurgos most popular book was war horse.They even made a play
It is one of the most popular.
The Bible is the most popular book selling over 6 billion copies worldwide.
The most popular book of the philosopher Alexis karpouzos is the poetry collection ''An ocean of souls''.
hamlet
the most popular book roald dahl ever wrote was georges marvelous medicane!
Jan Bett is a very famous children's book author and illustrator. She has written several popular books on the subject. The most popular book she has written is The Mitten.
Not sure if its the most popular but this children's book on amazon is about gut health.