A pleating is difficult and requires patience. Unless accurately made,
it should never be used on a hat, for upon its accuracy depends its
attractiveness. The simplest pleating is a side pleating. This may be
made from paper or stiff muslin for practice work. There should not be a
thread's difference in the width of each pleat. Any simple pleating
requires three times the length of the space it is to cover. If a
half-inch pleating is to be made, the folds will come every one and
one-half inches. As each fold is laid, baste it down with silk thread.
Press slightly on the wrong side before using.