The direction of calligraphy works is from right to left. This habit stems from the use of ancient writing tools. In ancient times, people wrote with bamboo slips. Bamboo slips are narrow and long bamboo pieces strung together with a rope to form a booklet. When writing, people spread bamboo slips from the right, hold a pen in their right hand, and write from right to left, then push the written bamboo slips away one by one from left to right and arrange them in turn. This can make full use of desktop space and avoid confusion between old and new bamboo slips. The writing direction of calligraphy works is from right to left and from top to bottom.