Part 1 Thoughts on Articles
Lesson 01 What part of speech is an article?
Lesson 02 Why are there two indefinite articles but only one definite article?
Lesson 03 Don't interpret articles?
Lesson 04 Are Korean nouns countable or not?
Lesson 05 The is similar to '~eun/neun'?

Part 2 Indefinite Articles and Nouns
Lesson 06 It's clear to me, but why do I have to use a(n)?
Lesson 07 Proper nouns are not uncountable nouns?
Lesson 08 Is data singular or plural?
Lesson 09 You can't count money in English?
Lesson 10 Why shouldn't you say "I love dog!"?
Lesson 11 In a piece of, piece is not 'piece'?
Lesson 12 Why is "a dozen of bagels" incorrect?
Lesson 13 Is the expression "a couple years" correct?
Lesson 14 Are both a half of and half of correct?
Lesson 15 What kinds of watches is the correct answer?

Part 3 Definite Articles
Lesson 16 Do we use the before the first noun?
Lesson 17 Do we use the before nouns that are related to the mentioned noun?
Lesson 18 If you can tell from the situation, use the?
Lesson 19 Is the always used before a noun that is modified from behind?
Lesson 20 Should we always use the in superlatives?
Lesson 21 There are many buses, so why is it called the bus?
Lesson 22 The reader refers to all readers?
Lesson 23 page 4 doesn't have a definite article, but why does the number 4 have one?
Lesson 24 'the+adjective' can also be an abstract noun?
Lesson 25 Is there no need for an article before Captain America's shield?

Part 4 Omission of articles and no articles
Lesson 26 President is a countable noun, so why isn't there an article in front of it?
Lesson 27 Is it linguist Chomsky or the linguist Chomsky?
Lesson 28 Why is there no article in live from hand to mouth?
Lesson 29: Why does on the bus have an article, but by bus doesn't?
Lesson 30 If I skip the, I'll go to jail?
Lesson 31 Can we omit the in the superlative?

Lesson 32 The is also used in comparatives?
Lesson 33 We don't use the definite article before exercise, but why do we use it before musical instruments?
Lesson 34 The flu is the same as influenza, so why is there a definite article?
Lesson 35 last week is 'last week', the last week is 'the last 7 days'?

Part 5 Proper Nouns and Articles
Lesson 36 Why is 'the Philippines' called 'the Philippines'?
Lesson 37 Why doesn't NATO have a definite article, but the WHO does?
Lesson 38 Do we use the before Reverend Kim or not?
Lesson 39 Batman was originally the Batman?
Lesson 40 Even Shakespeare got confused about nouns?

Articles in English are the grammar point that Koreans find most difficult.
Because you only memorize it without understanding it.
This book contains the thoughts and research I have been doing on the subject of government offices for the past 20 years.
I hope that this book will answer many of your questions about articles.
- From the preface