About copyright

Origami have copyright like music.
In music, composers and players are often different.
In Origami too, creators and players are often not same.
Origami's copyright is saved by creator.
A player(in such case, who fold origami watching a book) does not save copyright.
A player have only photo's.
In order to avoid　infringement of copyright,
I will write the book name as 'reference book' what I am watching when I fold.