本书以20几岁要懂得的关系为着眼点，主要讲述20几岁的年轻人建立广泛人脉的必要性，20几岁的年轻人与人沟通的技巧，20几岁的年轻人应该怎样处理与上司、同事、客户之间的关系，以及如何把握恋爱与家庭中的各种关系等。(This book takes the relationships that the young people at twenties need to understand as the focuses and mainly describes the necessity that the young people at twenties shall establish extensive contacts, the communication skills of the young people at twenties, how shall the young people at twenties handle the relationships with the superiors, colleagues and customers and how to master the love and various relationships in the family.)