What type of book is this?
It's an autobiography.
What type of book is this one?
It's a cookbook.
What type of book is this?
It's an adventure book.
This book is...
a science fiction one!
What type of book is this?
It's a romantic novel.
What type of book is this one?
It's a biography.
What sort of book is
It's a detective novel.
What sort of book is this one?
It's a travel guide.