Which of you was the one who wrote a book? I've got some questions...

[mjr]

I have an idea for a book. I think I have the introduction written, and I'd like a little bit of feedback from you (in DMs) if you don't mind...

Unfortunately, and I apologize for this, I don't recall which of you it was who wrote the book.

[Kristev]

I did. But I only write fiction books. Introductions aren't usually part of that.