In this book, the wise man Param Pujya Dadashri has discussed at length the concept of sin and virtue. In his simple words Param Pujya Dadashri has explained sin - virtue and said that by giving happiness to others we build virtue and by our words, deeds, or behavior, by causing trouble and suffering to someone we build sin. Yet if we do Pratikramana, we destroy sin and build virtue. What is the extended meaning of Sin – Punya? How is it related to rebirth? What are the consequences of sin – virtue? How to suffer the fruits of sin – virtue? What are the types of sin – virtue? What role does sin – virtue play in the path of salvation? Can virtue grant salvation? All these have been discussed by Param Pujya Dadashri in his book Paap-Punya. This reading will surely help the reader to increase awareness of sin-virtue and bring him closer to salvation by giving answers to many problems of life.