Respuesta :
In a nonfiction work, the feature that lists the major parts with the corresponding page numbers is the table of contents. It outlines the main points ot the texts along with the pages in order to help the reader understand how the book is organized.
Depending on the format, it may be in the first pages or at the back of the book.
Not to be confussed with the index, which only shows alphabetical listing of the key names, concepts or events cited in the book along with page numbers.