Hello, Manaka, and welcome to the Grammar Exchange.

Actually, your question is not about grammar, but, being your first question, I'll help you all the same.

In a library you can find poetry (lyric genre), plays (drama), fiction (narrative genre: novels and short stories), and non-fiction. In this Wikipedia article you can find a long list of different types of books. "subject" means an altogether different thing, being closer to "topic" or "theme." For example, you can find books of different genres (poems, plays, novels, essays, etc.) about the topic of war, love, death, etc.

Add Reply

Likes (0)
×
×
×
×