"Visible English" is a book that captures the authentic pronunciation of spoken American English. Its most useful feature is the precise Korean phonetic transcription of the American pronunciation at the bottom of each phrase. It provides detailed explanations of "vowel backflexion" and "sentence stress" to help learners pronounce English with native-like accuracy.
You'll be amazed at how effectively this book can help you learn English. Furthermore, it references "Neuroplasticity and Procedural Knowledge of Language" to target unconscious acquisition through repeated exposure to sounds.
Language should be approached as procedural knowledge rather than analytical knowledge. However, Koreans' segmental sounds hinder this approach. This book was written to facilitate the approach to English, an inflected language. Only after mastering these principles can unconscious procedural acquisition of the language become easier.
Visible English is the world's only book that is "completely expressed solely in Korean."

The reason why people are not good at English is obvious: if they can't hear English, they pronounce it incorrectly, so the more they practice, the worse they become. The principle of English of Visual Sound is "a method to independently recognize English inflections by providing visual aids (notations) to English pronunciations that sound different due to Korean segmentation."
"English of Visual Sound" refers to an English learning method or textbook that utilizes this method by visualizing the correct pronunciation of American spoken English in Korean phonetic notation to aid learning . In particular, it focuses on solving the problem of native speakers perceiving inflections (the phenomenon of naturally connecting sounds) differently due to Korean segmentation (the tendency to pronounce syllables by breaking them up).
Key Features
- Visual pronunciation notation: The American pronunciation of each phrase is accurately written in Korean, helping you see and understand the sounds.
- Based on pronunciation principles: Beyond simply listening and imitating, it is based on the core principles of American English pronunciation: 'back vowelization (such as the pronunciation of 'r')' and 'inflectional sounds (linking sounds).'
- Repetitive learning: By repeatedly listening to native speakers' voices using apps and other tools, you will unconsciously acquire pronunciation principles.
- Practical content: Focuses on improving your conversational skills in real life by selecting frequently used expressions in everyday life.
- Strengthening Listening/Speaking Skills: This learning method focuses on addressing the problem of not being able to hear or speak English, and is especially useful for those preparing for the OPIC or TOEIC Speaking tests.
【Seoul=Newsis】Reporter Park Hyeon-ju = The English pronunciation of "What's going on here?" sounds like an African language, and makes you wonder, "What does it mean?" However, the more you listen to it, the more addictive it becomes. "I was studying English during vacation, so I diligently watched and listened to English with sounds for ten days. Then, while exercising along the river, I put my phone in my ear and listened, and the sentences came to mind as they were." An elementary school teacher who heard the book commented, "At first, I was hesitant because the audio and Korean pronunciation seemed a bit different, but after trusting the book and trying it out, it's the best English book I've ever read." > See more news
English with Sound is an English textbook created by the AICorpus Language Technologies Institute, a group that researches and develops corpus-based search engines, translation and interpretation technologies, big data analysis, and inference technologies. English with Sound is a textbook developed for the authority of the AICorpus Language Technologies Institute.