Possession is a Romance written by the English writer A. Byatt.

The noun possession may refer to three different meanings: they are property, ownership and possession. If property and ownership refer to the possession of something that is concrete, the word possession means that somebody owns something that is concrete. So the writer may have chosen the noun possession because reading and analysing her Romance the reader understands that the main characters are looking for and studying to find something and to become the owner of this thing which is the knowledge of the story and the correspondence between two writers of love poems.