This collection focuses on the specific issue of controversy as a cross-sectional aspect of contemporary children's and YA literature, in a spectrum stretching from national experiences, to explore the impact of specific historical, economic and social environments on the rise of controversies; to inter-national exchanges in which controversies are generated specifically by the interactions between cultures; to international contexts that deal with controversies relevant on a global scale. By adopting controversy as an adjustable lens for a joined consideration of literary themes, narrative or aesthetic solutions, translation choices, publishing and marketing decisions, and discursive practices, the volume establishes a diversified collection of chapters that offers new insight into functions of children's and YA literature in contemporary culture.