Are the old calendar books sold in the bookstore illegal?

I don't think so. People will still buy it now.

After the reform and opening up, the customs and religious beliefs of all ethnic groups have been fully respected, and the folk customs handed down from ancient times have gradually recovered, but some feudal superstitious activities have also "revived". Superstition itself is not necessarily illegal, and whether superstition belongs to the level of ideological realm.

Although there are many superstitious ideas in Chronicles of the Yellow Calendar, it also contains scientific knowledge such as astronomy, geography, humanities and philosophy, which is the crystallization of China's ancient scientific observation and research. It is precisely because almanac has certain scientific and practical value that it has been selling well among the people.

For the best-selling yearbook, I personally hold an inclusive attitude and treat it with a rational attitude of "taking its essence and discarding its dross". There is no need to regard Almanac as a "ghost", so we have to sweep it into the garbage dump of history as we did then.