Sefer HaYashar
 
The straight book
It is the righteous book, a way of life and moral rebuke, from a stubborn way to deviate, and to walk in the righteous path, in the eyes of God and man, and to it is added the brevity of the things at the end of each chapter and in it the summary of the things that actually arise from that chapter arranged in a clear and clear language equal to every soul.