The book addresses the meaning and evils of "discrimination" and "preconception"., citing examples of attitudes and behaviors that represent discrimination and preconception against someone, belittling, humiliating, offending, and shaking a human being s self-esteem. Tell the story of the Crystal sheep, a white sheep, who experienced the bitter consequences of being discriminated due to the preconception of the flock of black sheep. Sick and sad, Cristal was sold to another farmer who had a flock of white sheep. There she experienced the joy of integrating in the herd. But Nature wanted Cristal to generate a small black ram, which went through the same sad experiences as her mother. In the end, Cristal managed to sensitize the flock of white sheep, like Jaboticaba's mother, to accept it and they will not discriminate any more. It is a story with an educational character and knowledge development, while involving and enchanting readers. The main ethic is to sensitize readers to the preconception suffered by minorities.