Traditional couplets are read from there.

If the horizontal batch is traditionally read from right to left, the upper part will be posted on the right side; If the horizontal batch is read from left to right, the first part will be posted on the left. In other words, where is the first word of the horizontal batch posted?

Nowadays, the streets are generally not painted. Traditional plaques and signs are read from right to left, and the couplets on both sides are posted in the corresponding order, otherwise it will make a joke, at least it will make people feel uneducated.

Nowadays, most couplets used in the Spring Festival are read in a modern way-from left to right.