Name: Oh Jung-hyun (Charles Oh, “Teacher Charles”) Occupation: Specialized English Original Text Reading Instructor, Author, Educational Content Developer Specialties: Repetitive English original text reading training, pronunciation correction, customized reading education for children and adolescents 🎓 Education 1996: Graduated from Sogang University, Department of Electronic Engineering 1998: Obtained Master’s degree from Seoul National University, Department of Electrical Engineering Completed TESOL course at Yonsei University 💼 Major Career Engineer, Information and Communications Division, Samsung Electronics (1998–2001) Developed electronic switching systems; worked as a technical engineer Educational Content Production (2003–2007) Production of English multimedia textbooks for academies (total value of 700 million KRW): Developed DVDs, audio/video, and test materials Head of Faculty & Book Club Manager, 7Step English (2007–2011) Operated a book club with 600 students Reading level assignment, reading curriculum design, and native English-speaking instructor management Director, Bacon English (2011–Present) Specialized instruction in original English texts for children and teenagers Integrated classes covering reading, pronunciation, and speaking through ‘repetitive reading training’ Operated series classes on the gguge platform featuring works such as Nate the Great, Amelia Bedelia, Henry & Mudge, and Frog and Toad 📚 Publications 『An English Pronunciation Book for This Situation』 (Bacon Books, 2024) Co-authored by: The late Oh Jung-seop & Oh Jung-hyun 🌟 Achievements Over 380 positive student reviews (on the gguge platform) 18 years of experience teaching original English texts Supported the growth of hundreds of learners through book clubs, online lectures, and 1:1 level tests Operated the YouTube channel ‘Charles Sam English’ (English original text reading videos, English learning content) 💡 Educational Philosophy “English is not knowledge, but a language.” English learning is a process of repetitive reading → sentence sense → confidence in reading, pronunciation, and speaking. Focus on cultivating the child's ability to read and express themselves independently, rather than simply conveying knowledge. Publisher: Bacon Books