책은

the book

→ 책
phrase Common #4,134
the book 은 marks 책 as the topic of the sentence and can also add contrast.
KO: 책은 가방 안에 있어요.
EN: The book is in the bag.

책은 끝냈어?

Have you finished the book?

— 달콤한 인생 (1960)

“여기 책은 없어요.”

There are no books here.

내 책은 주셔야죠

You should give me my book, though.

— 잉글리쉬 페이션트 (1996)

책은 미안하게 됐어요

I'm sorry about the book.

— 울프 콜 (2019)

여러분이 좋아하는 해리포터 책은 무엇 인가요?

Which Harry Potter book is your favorite?

“구해 온 책은 다 파세요?”

Are you selling all the books you’ve gotten?