Social and emotional learning is an important element in educating the whole child. When social skills are taught and reinforced in a school-wide model, which incorporates positive behavior support, both students and faculty experience a better learning environment. The Book in a Bag intervention invites parent volunteers to teach social skills in the classroom. Supplementing this school-wide intervention, parents also receive a monthly newsletter informing them of the identified social skill and recommending associated children's picture books, which further reinforce the skill. The purpose of this study was to determine parent perceptions on the effectiveness of the Book in a Bag program, which was implemented in the target school. Questionnaires (N=327, 47.74% participation rate) were completed by parents who responded to questions about their perceptions of the program's influence on their children's behavior, the importance of parent involvement in the program, and the importance of the school-wide social skills program. Parents expressed an overall positive response to the school-wide social skills program. In addition to reporting and describing data, observations of the questionnaire's weaknesses and strengths are discussed. Future research possibilities and recommendations to further strengthen parent involvement in school-wide social skills programs are offered.