HSK V7-9
Correct

概论

/ gàilùn / 
Strokes

Definition

outline/introduction/survey/general discussion

Example

As a Noun
[often used as a book title] introduction; outline; compendium
1
  
《
měiguó
美国
wénxué
文学
gàilùn
概论
  
》

An Outline of American Literature ; A Compendium of American Literature

2
  
《
yǔyán
语言
gàilùn
概论
  
》

An Introduction to Language