The formal channel for Oxford Tree to read picture books by grades is online shopping, and there is no official physical store.

At present, the available versions in China are the imported version and the motherland version.

Imported version: It is divided into three versions: Kadik, Model English and Li Sheng series. Among the three versions, the Cadillac version is the most comprehensive and imported completely according to the original version.

Motherland edition: divided into red label, no label, orange label, rainbow flower and gold label. Different labels are the names given to their books by different manufacturers or places of origin in order to distinguish them. The difference lies in different printing colors and different paper thickness.