Two cassette pack - Becoming a Picker-Upper-Person by Glenn Van Ekern. 

When we put a measuring stick to all of life's experiences and achievements, relationships are often at the top of the list of those things that bring enjoyment, fulfillment and happiness to our lives. Those who successfully implement the ideas in these teachings become picker-upper-people. They make a positive difference in people's lives. Picker-Upper-People are masters at bringing out the best in others. They accept people for who they are, try to understand what is important to them and then encourage people to become all they can be. Become the kind of person people enjoy being around. Make it possible for someone to say, "I like myself better when I am with you."