The "Hi! Korean Series" is an integrated Korean language coursebook designed for foreign learners who are interested in Korean culture and have begun studying Korean.
The textbook incorporates the latest trends in Korean culture and offers a variety of activities to help students master the four areas of speaking, listening, reading, and writing.

It organically presents speaking, listening, reading, and writing areas while maintaining a consistent structure from beginner to advanced levels, and it is structured so that listening and reading are presented separately for each subject to increase learning concentration by area.
In particular, in the step-up course, which moves away from problem-solving-centered activities, communication skills are developed by expanding what has been learned through speaking and writing activities.


The overall composition of the 『Hi! Korean Series』 is 10 Student Books (4 beginner, 4 intermediate, and 2 advanced), which include a separate 'Grammar and Vocabulary Study Book', and 10 Workbooks (4 beginner, 4 intermediate, and 2 advanced) sold separately.
Among them, 『Hi! Korean 1B』 presents the basic grammar and vocabulary necessary for beginner learners to communicate in Korean about daily life, such as weather and seasonal activities, health-related expressions such as symptoms and hospitals, understanding transportation and finding directions, and introducing hometowns and planning vacations.