That kind of paper with white characters on a black background is usually printed on stone tablets or other hard materials, which is called "rubbings". The representative works are the works of Zhang Qianbei, Cao Quanbei and four famous calligraphers in Han Dynasty, most of which were written on the tablet and then printed.
There is also a template that we see is no different from what we usually write. Write directly on paper with a brush or pen. This is called copybook. Representative works include Preface to Lanting, which was known as "the best running script in the world" in ancient times, and Sacrifice to My Nephew by Yan Zhenqing.
There are three kinds of red squares, one is called Jiugongge, the other is called Cross, and the other is called Mi Zige, which is literally understandable.
And the hollow characters drawn with red lines are called little red books.