LZ must be clear about the purpose of this survey before the survey (research on children's book consumption groups, or research on prices, or sales volume, concerned sectors, etc.). )

From big to novel.

First of all, look at the size of the book city. Book City should be a representative large bookstore in the city. In addition, look at bookstores that don't have professional children's books, and the proportion in the market.

Then, according to the purpose of this survey, it is decided that if it is sold, it depends on the scale, relative price, distribution of publishing houses, listing date and passenger flow of children's books in the whole book city.

It's good to have a clear purpose anyway. I wanted to write more, but I still didn't understand the specific purpose of lz's investigation ~

I hope you know for yourself. I wish you success!

If you are prepared, it is good to take some photos with the camera. If you don't take pictures, you can take them with your mobile phone.