The book fold is a kind of
so it is shown by a dashed line.
Sometimes there is an arrow showing the folding direction.
Fold one flap of the paper to the other side of the model,
just like turning a page of a book.
Jasper in 1999.
Copyright 1995-99 by Jasper (aka John Paulsen). Your comments are welcomed.
Last updated October 23, 2004.