Where can you find a list of content covered in a source

Hey there!

The answer will be index. An index is an alphabetized list of important terms with definitions or explanations that the person utilizing the source may have not known before. They're often used for reference while reading the source or use after reading through the source. 

Hope this helped you out! :-)

Bruh so the colon is somethang in yo digestive track so thats nasty dawg.