Another second-hand book bought for a Dollar

A certain group of people were looking for a handbook that teaches us how to get along with other people. They came to the conclusion that nothing had ever been written on the subject. (I am reading that in the book How to win friends and influence people, written by Dale Carnegie.)

Why were they looking for a guide book like that? They found out in a survey that people were interested in two things, namely:

A. Health and

B. THEY WANTED TO KNOW HOW TO GET ALONG WITH OTHER PEOPLE.

Is there really no handbook on the all-important subject of getting along with other people?

What about the Bible, “THE BOOK OF BOOKS”?

And please remember that the Bible is the oldest book in existence.