I would like to introduce unique writing system of Korea, which is called “Hangul”. Unlike many other languages which use alphabet as their writing systems, Korea has its own writing system, which was made by King Sejong in 1443.
Writing systems are divided into either ideogram like Chinese characters or phonogram like Hangul and Japanese kana. Phonogram is also divided into either alphabet,  each letter representing one phonemes , or syllabary, each letter representing one syllabus. Hangul, Alphabet, Abugida and Abjad are all included in “alphabet”, but what makes Hangul different from other “alphabet” is that the way Hangul was made is very sophisticated and scientific. The way in which the Hangul was made is all explained in words in a book called “훈민정음”, meaning The Correct/Proper Sounds for the Instruction of the People.

Korean letter consists of 10 vowels and 14 consonants
ㄱ ㅋ
ㄴ ㄷ ㅌ ㄹ
ㅁ ㅂ ㅍ
ㅅ ㅈ ㅊ
ㅇ ㅎ

Equivalent pronunciation is below :
G K
N D T L
M B P
S Z TZ
H

Consonants on the same line have similar way to pronounce. For example, when speaking “ㄴ ㄷ ㅌ” in a row, the tongue hits the same place(organ) with different power. When King Sejong made the letter, horizontal lines were added to mark sound getting stronger. Besides, when consonants are written twice, the sound becomes stronger.
ㄱ ㄷ ㅂ ㅅ ㅈ > ㄲ ㄸ ㅃ ㅆ ㅉ

10 vowels are
ㅏ ㅑ ㅓ ㅕ ㅗ ㅛ ㅜ ㅠ ㅡ ㅣ

ㅡ       ㅗ ㅏ        ㅛ ㅑ
      ->            ->
ㅣ       ㅜ ㅓ        ㅠ ㅕ

ㅣ+ ㅗ -> ㅛ (yo)
ㅣ+ ㅜ -> ㅠ (yu)
ㅣ+ ㅏ -> ㅑ (ya)
ㅣ+ ㅓ -> ㅕ (yuh)

and below is the double vowels:

ㅐ ㅒ ㅔ ㅖ
ㅘ ㅙ ㅚ
ㅝ ㅞ ㅟ
ㅢ

ㅘ -> ㅗ + ㅏ -> o + a = wa
ㅙ -> ㅗ + ㅐ -> o + eh = weh
ㅝ -> ㅜ + ㅓ -> u + ə = wə
ㅞ -> ㅜ + ㅔ -> u + eh = weh
ㅚ = weh ㅟ = wi
ㅢ = eui

19 consonants
ㄱ ㄴ ㄷ ㄹ ㅁ ㅂ ㅅ ㅇ ㅈ ㅊ ㅋ ㅌ ㅍ ㅎ ㄲ ㄸ ㅃ ㅆ ㅉ
21 vowels
ㅏ ㅐ ㅑ ㅒ ㅓ ㅔ ㅕ ㅖ ㅗ ㅘ ㅙ ㅚ ㅛ ㅜ ㅝ ㅞ ㅟ ㅠ ㅡ ㅢ ㅣ

As it can be seen above, Hangul is a very scientific writing system, made with deep consideration. Due to this characteristic, it is very easy for foreigners to learn to read hangul since the shape of each letter is related to the way it’s pronounced.

I wish more people get interested in Hangul and Korean, and love Korean culture!!