A book that tells you definitions and pronunciations of words.
What is a dictionary?
100
An illustration that represents what something (real or imaginary) may look like.
What is a drawing?
100
Topics and page numbers at the back of the book.
What is an index?
100
In the following Table of contents, it's the chapter that would be most helpful in getting you started playing the guitar:
1.) About the Guitar
2.) Getting started
3.) Cowboy Chords
4.) Capo Chords