About the book comic

What you see well in the bookstore is book comics.

Book comics has the different size depending on the kind.
For example,
a boys' comics and the girls' comics are new book size,
and the young man's comics are B6 size, and
the large size comics such as the four-cell comic are A5 size.

The spin-off and the short story might be drawn
when pages of one comic is insufficient.