This is book 2 in the Active Korean series. This book, just like its predecessor (book 1), is well organized, making the learning fun and relatively easy. However, unlike book 1, book 2's audio is too fast for a beginner. Hence the four stars. But overall, I still highly recommend the Active Korean series to anyone interested in learning Korean.4/5(2). My flash cards for studying the vocabulary in Active Korean 2 for my Korean Study Course. Active Korean 2 Unit 1 study guide by penguinlovesdoku includes 42 questions covering vocabulary, terms and more. Quizlet flashcards, activities and games help you improve your grades. Seoul National University presents an ideal series for short-term Korean study! Active Korean series developed by the Language Education Institute of Seoul National University, helps learners develop their communicative skills in Korean in effective ways within a short period of time.4/5(28).