Neeti
At various times, sages have authored literature on their primary set of beliefs and ethics. These are called Neeti. There are various Neeti, of which authored the following are worth mentioning:-
Vidur Neeti
Chaanakyaa Neeti
Bhartrihari Neeti
Shukra Neeti
Shukra Niti also available at: https://archive.org/details/ShukraNeetiWithPrakritaShlokaRamChandraGovindShastri/page/n1