Generally use cheap fringed paper (5 yuan). However, don't write directly on the copybook with a brush. There are two methods: double hook and single purchase. Put the paper on the copybook, first draw a hollow stroke with a soft pencil (2B or 4B) along the stroke edge of the word, which is called a double hook; If you just draw a single stroke along the center of the stroke, it is called single purchase. Then, write on the traced paper with a brush. Double hooks imitate strokes, while single purchases imitate glyphs. You should practice double hook first, and then practice single purchase.
When copying to a certain extent, it is necessary to transition to temporary writing, that is, put the copybook next to it and write according to it.