This book considers the role of deception during adolescence, and explores the factors which underpin adolescents' choice to deceive, whether these deceptions will be successful, and the ways in which such lies could be detected. While deception is considered to be antisocial or even pathological in some circumstances, the central argument of this book is that lying can be a skilled behaviour which is necessary to allow adolescents to establish autonomy.Deception builds on the recent influential developmental challenge model (Hendry and Kloep, 2002, 2009), exploring how it c