What I have isn't really freezer paper, it's meat wrapping paper but does not have a waxed side. We use it for wrapping meat for the freezer . . .
So I am mainly using it just to transpose the drawing. I lay it on top of the pattern in the book and trace, then turn it over and I can see the markings, and trace on the back side. Now I have the reverse template from the book.
I can use that to lay the fusible web on to trace, and then when I iron it on the fabric and cut them out, I'll have the shapes in the same direction as on the book.
I actually traced directly from the book to the fusible web, giving me a mirror image of the block. Which caused problems when I went to trace for the embroidery, as that now needed to be reversed. I used the paper to flip the embroidery lines.