By 'it' do you mean the book "It" by Stephen King? And in that case it is a Horror book.
a reference book
A falling book in mid-air has what kind of energy?
Brave
A black BMW.
This book is very elusive, it is one of a kind.
a manga
its not a book
A book.
A nonfiction book.
It depends what kind of book it is
childrens book
it depends if the genre of the book is the kind of book you are into
The author name - the title of the book - the kind of the book .
I think a Christmas book is a tale about Christmas!
a book jacket is a cover for a book, atlas, or any other kind of book.
The picture book Jumangi is more of a serious thinking kind of book.
It depends on what kind of weird boy. Nerd-Next years encyclopedia. Geek-Nexts years book of game cheats "The just kind of out there boy"-a book of poems A kind of book really!!!!