Questions & Answers about Det är min tredje bok.
Swedish often uses det as a neutral, “dummy” subject in sentences like this, especially when you’re identifying or introducing something:
- Det är min tredje bok. – It is / This is my third book.
You could theoretically say Den är min tredje bok, but that would usually answer a very narrow question like “Which one is your third book?” while you’re pointing at one specific item among others.
For a neutral statement “This/That is my third book”, Det är … is the normal, default way to say it.
Yes, you can say:
- Det är min tredje bok.
- Det här är min tredje bok.
Both are natural.
Det här är … = “This is …”, slightly more specific and often used when you’re physically holding or pointing at the book.
Det är … is a bit more general and can correspond to “It is …”, “That is …” or “This is …” depending on context. In everyday speech they overlap a lot; both are correct here.