Practice Book 1: Through this practice book, you can learn and practice the basic Korean alphabets (14 consonants, 10 vowels). The Korean alphabet Hangul has 24 basic letters:

14 consonants:

ㄱ ㄴ ㄷ ㄹ ㅁ ㅂ ㅅ ㅇ ㅈ ㅊ ㅋ ㅌ ㅍ ㅎ

10 vowels: 

ㅏ ㅑ ㅓ ㅕ ㅗ ㅛ ㅜ ㅠ ㅡ ㅣ

Practice Book 2: This book is designed for learners of the Middle  East who wish to self-study the Korean language in a simple and fun way. Through this practice book, you will learn and   practice the remaining basic Korean alphabets (5 double consonants, 11 compound vowels):

5 Double Consonants:

ㄲ ㄸㅃㅆㅉ

11 compound vowels: 

ㅐ  ㅒ  ㅔ  ㅖ  ㅘ  ㅙ  ㅚ   ㅝ   ㅞ   ㅟ   ㅢ

Practice Book 3:Through this practice book, you will learn all about the final consonants in Korean Alphabet.

14 Final Consonants:

ㄱ ㄴ ㄷ ㄹ ㅁ ㅂ ㅅ ㅇ ㅈ ㅊ ㅋ ㅌ ㅍ ㅎ

5 Double Final Consonants: 

ㄲ ㄸ ㅃ ㅆ ㅉ

9 Compound Final Consonants:

ㄳ ㄵ ㄶ  ㄺ  ㄻ  ㄼ  ㄽ   ㄾ  ㄿ  ㅀ  ㅄ