... is a 1 or 2 sentence description of what your book is about. It is not generated with the manuscript.
... is a single brief paragraph describing your story. It is not generated with the manuscript.
... is often found in the front inside first page, this can be either a snippet from a chapter, or reviews.
... paying homage to special persons (or references) that inspired, supported, or drove you to produce your book
... is used to acknowledge those who have been instrumental in helping you write your work.
... is often written by someone other than you that explains the relationship between them and either you or your story.
... this is about YOU.
... contains information about you, your editor, and/or reviews. It may also contain a summary or description of the book