This book is devoted to a theme of public health reaching out to communities of practice/engaging communities in new public health endeavors/community-scientist collaborations. The authors sought chapters that fit the theme and were either quantitative or qualitative research, program descriptions, or theoretical reviews of public health issues. Thus, this book contains both quantitative and qualitative research papers, programmatic and theoretical papers on applied public health issues. A range of topics are included from violence and behavioral problems to nutrition, cancer survival, deinstitutionalization, intellectual disability and child maltreatment.