Another very successful chapter in this respect is that on parental substance misuse co-written by a researcher, Moira Walker, and a services manager, Mary Glasgow. Its "messages for practice" in relation to assessment, working with parents and working with primary-aged children is among the best I have read in this complex and under-researched area. Given the alarming prevalence or parental substance dependence, which now constitutes the single greatest challenge in the field of child protection, this chapter is most welcome. For the challenges facing us in relation to child neglect are enormous, but the comprehensive and cross - disciplinary approach of this book, with its strong emphasis on research and its respect for practice, is a source of hope.