This is the 18618th most frequent Korean word.
신간을
"신간을" means "new publication" or "newly released book."
Refers to new book releases in this sentence and is used as a direct object.
나는 주말의 한가한 시간에 신간을 읽는 것을 좋아합니다.
I like reading new books during my leisurely time over the weekend.
Represents a new book in this context and relates to the bookstore's action of displaying it.
책방에서 그 신간을 진열대에 두었습니다.
The bookstore placed the new book on the display shelf.
Pertains to newly released books for this particular month, as described in the situation.