Answer:
The answer is Table of contents.
Step-by-step explanation:
In a print source, like a book or a magazine, you will find the Table of contents at the beginning of the source. The table of contents will let you know if it would be helpful to you, because it presents a breif summary, presented as a list, of the topics that are included in that source. This way, you don't have to browse the entire book or magazine and waste time.