As the male prison population increases, so too does the number of children with fathers in prison. The negative impact of fatherlessness on children has been well documented. While parenting education is often seen as an effective tool to improve the quality of family relationships and foster positive outcomes for children, fathers in prison frequently are ignored or excluded from parenting programs. This mixed methods study examined the impact of short term parenting education on fathers in prison who were enrolled in a 3-day parenting class. A simple experimental design was coupled with individual interviews. Quantitative results indicate that fathers' knowledge and attitudes changed significantly with respect to use of corporal punishment and role reversal; qualitatively, fathers reported significant changes in other areas. This study has implications for prison parenting programs. (Contains 1 table.)