This study evaluates the efficacy of the Parenting from Prison curriculum which was implemented across Colorado correctional institutions. Parenting from Prison is a skills-based program that aims to strengthen family relationships and promote positive behaviors by increasing parental knowledge about risks, resiliency and developmental assets. A pretest-posttest design was utilized to assess short-term changes in communication with children, parental knowledge and parental attitudes among incarcerated parents (N = 150). Improvements in parenting knowledge and parenting attitudes among female and male incarcerated parents were found. Results warrant further investigation into the benefits of parent education programs for incarcerated parents, including a randomized control study of the effects of Parenting from Prison. (Contains 2 tables and 2 figures.)