This point is both very simple and very useful for embroidery and patchwork.
This point is indeed to quilting (quilting or if you prefer), that is to say, to hold together the three layers that make up the quilt, the top (or top) batting, and lining. But it is also used to assemble parts or embroidery. The Japanese use it for the traditional Sashiko example.

The secret to a beautiful point before: regularity, that is to say, get to make points about equal length. Then the result is finer if the dots.

Now lets practice. You remember you test for sewing your doll? Yes .. great .. No? it does not matter!
This is simply to pass on here over the fabric with your needle. This draws a dashed line with the wire.
In pictures it looks like this:

At the back of the book it gives this:

One can also make several points at once! :

And presto!

And here is the work:

Your turn!