Children’s rights have hardly been analysed in terms of the capability approach (CA), which was developed by Amartya Sen (1999) and Martha Nussbaum (2000), and many other scholars. This book is among the first attempts to bridge the two, and it appears after a few contributions to this endeavour (Biggeri et al. 2010, 2011; Dixon and Nussbaum 2012). Children’s rights and the capability approach are not of the same nature: children’s rights are a social reality and the capability approach is a perspective to reflect on it. The capability approach is a way to operationalize formal freedoms (entitlements), and hence children’s rights. The challenges of applying a capability approach to children's rights include, notably, to go beyond the pitfalls of the new social studies of childhood. The contributions to this book are briefly presented. They highlight important issues that have to be taken into account to approach children's rights in new ways.