Level Up Your Writing

Hi, I'm William — an editor, English professor, and YouTuber based in South Korea.

I help intermediate English learners develop the advanced literacy skills needed to thrive in the 21st century.
I'm also known for Writer Science, the weekly newsletter in which I share insights and tutorials about the art and science of clear writing.
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Check out my Ultimate Guides

University Admissions

Applications, admissions essays, and test prep for the IELTS, TOEFL, and TEPS exams.


Academic Writing

Develop, express, and organize your answer to a question worth writing about.


Science Writing

Make your reader care about your research.