This book of Hermetic Philosophy
claims to be the essence of the teachings of Hermes Trismegistus.
One of the foundations of the book is the dedication to the Seven
Principles and there is a complete chapter describing each one in
detail. Each one of the Seven Principles brings to light a number
of ways to become more familiar with your self and become a better
and more enlightened individual. Read more on Wikipedia.
While the book is said to be authored by
Three Initiates, they chose to remain anonymous, resulting in much
speculation as to the actual author. You can read more on Wikipedia
at the link above.