Typically, it's called the 'back cover'. This is where you might find a summary of the plot, author bio, or some praise for the book.
The back part of a novel is usually referred to as the 'back cover'.
The beginning of a novel is often referred to as the 'introduction' or 'prologue'.
The middle part of a novel is often referred to as the 'rising action' or the 'development'.
The main part of a novel is often referred to as the 'plot' or the 'storyline'. It's the sequence of events and actions that make up the core of the narrative.
Well, a 4-part novel series could have a name like 'The Tetralogy of Destiny' or 'The Quartet of Wonders'. The title often reflects the theme or main idea of the series.
It's usually called the prologue. A prologue comes before the main story of a novel and often sets the stage or provides background information.
The back cover of a novel is sometimes called the 'backside cover'. It plays an important role in providing additional details about the book to attract readers, such as a brief description of the plot or praise from other authors.
The first chapter of Journey with the Phoenix was called Journey with the Phoenix.
The first one with Feng Xing was called "This King Is Here".
A back story is often referred to as a background story or a history.