Practical Korean Usage Upper-Intermediate 2

A free, bilingual Korean grammar series for upper-intermediate learners — the advanced grammar that carries you from solid intermediate toward fluent, natural Korean, with full English explanations, abundant quizzes, and TOPIK II–level practice.
Practical Korean Usage (PKU): Upper-Intermediate is built for serious self-learners ready to cross the hardest gap in the language — the leap from "I can get by" to confident, native-like expression. If you've finished the basics, you're preparing for the TOPIK, or you want to understand K-dramas and K-pop without leaning on subtitles, this is the grammar that gets you the rest of the way — the real connectives and nuances that everyday textbooks skip.
What's inside every volume:

• Twelve focused chapters, each teaching one high-value grammar point in depth — real, practical Korean as Koreans actually write and speak it, not stiff textbook lines.

• Fully bilingual — clear English explanations with rich Korean examples, made for English-speaking learners.

• Quizzes with complete answer keys in every chapter, so you can study entirely on your own.

• An AI practice companion built into each chapter: ready-to-use prompts that turn ChatGPT, Claude, or Gemini into your personal Korean tutor. Made with AI, for the age of AI.

• A unique twist — the twelve grammar points of each book weave into a single twelve-line piece of writing you compose yourself, line by line, turning study into real expression.
Perfect for TOPIK preparation, self-study, and anyone deepening their Korean for work, study, travel, or the love of Korean culture.
And it is free. In the spirit of King Sejong — who made Hangul simple enough for everyone, not only scholars — this series exists so that no one is turned away from learning Korean by the price of a book. Start where you are, and keep climbing.

한국어 문법, 토픽(TOPIK), 한국어 독학 — 무료로, 누구나. 📚
— PKU · Practical Korean Usage