Tobacco has several bad effects on general as well as oral health. Its effects on oral health range from as simple as mild staining to as severe as advanced neoplasms leading to early death. Tobacco consumption is the most common and PREVENTABLE cause of oral pre cancer and cancer.The term Preventable, here, needs to be stressed. Educating people about the deadly effects of tobacco, especially the adolescents who fall into this deadly trap just because of lack of right guidance is very important. This book gives a brief idea about history,forms, ill effects of tobacco and how to reduce and prevent it.