The series of Chinese public education books is very rich and comprehensive. Regarding the national examination, the most well-known ones are the test and application, in addition to special practice series, interview series and so on. The set of Chinese public education books about five textbooks for national examination may refer to special breakthrough textbooks, including common sense judgment, data analysis, judgment and reasoning, quantitative relationship and speech understanding. You can go to the major bookstores or the Tmall flagship store of Zhonggong Education to have a closer look. Just buy the textbooks you need according to your actual needs, and you don't have to buy the whole set.
If you have any questions, please ask the Chinese public education enterprises.