- Overview
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This is a book containing the author's key play secrets, obtained after consulting children and parents for 20,000 hours for 15 years.
- Book Intro
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This is a book containing the author's key play secrets, obtained after consulting children and parents for 20,000 hours for 15 years. This book was written with the hope that it will help children develop intelligence and creativity, and develop emotions and emotions. This book is for everyone, regardless of their age or disposition, and includes 50 ways to play fun and fun for every child.
- About the Author
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Jang Jae Jin
