There is an entire genre of books aiming to provide guidance to princes. Machiavelli’s “The Prince” is perhaps the best known of these, followed by Castiglione’s “Book of the Courtier”. To read about the genre for the Italian Renaissance, see “Virtue Politics” by James Hankins. While these bear some resemblance to early modern management trade book, they are very often highly normative and try to provide a standard of principled Christian behavior for the ruler to follow, a standard that appears to have been most acknowledged by its breach. Machiavelli’s much more practical and non normative bent likely goes a long way to explaining how “The Prince” has remained so popular for 500 years.
“The Book of the Body Politic” fits right in her, although the author, Christine de Pizan, was a French woman rather than an Italian. She wrote other books and was one of the few women to address gender differences among the ruling classes of the time. This book also argues the norms for a prince and his network of counselors, servants, and other contacts, in terms of an analogy with the human body, with the Prince sitting on top of a broader collective of associates and contacts. This is not unknown among late medieval political tracts and this book’s analogy appears to be modeled after “Policratus” by John of Salsbury.
The book’s behavioral standards are normative and aspirational. There is no Machiavelli lurking around here in the shadows. Christine de Pizan was writing during a time of political turbulence in what became France.