By connecting the textual discourse with an analysis of its use and reception across the region, Ngo demonstrates that the Essentials was a key source of Confucian political thought and practice during the early Tang dynasty. In accounting for the place of the Essentials in political advice literature, Ngo illustrates how it drew from the ancient Confucian heritage and was still responsive to contemporaneous political concerns, suggesting that the Essentials played a part in the success of Zhenguan political practice.
Ordering Tang China also includes the first English-language translations of portions of the seventh-century anthology, with reference to partial translations published in nine languages. Utilizing the theory of cultural memory to study the Essentials not only opens a fresh approach to learning about the imperial consumption of literature, as well as the theory and practice of emperorship, but also offers a case study for how to study Chinese governance literature, including its "mirror for princes" genre.