The domain of evaluative morphology is vast and complex, as it requires the combination of morphological, semantic and pragmatic information to be understood. Nevertheless, cross-linguistic studies on spoken languages show that languages share some patterns in the way they encode evaluative features. It follows that investigating evaluative morphology in sign languages (SLs) can enrich the literature and offer new insights. This book provides descriptive and theoretical contributions by considering Italian Sign Language (LIS) as empirical ground of investigation. At the descriptive level, the analysis of corpus and elicited data improves the description of morphological processes in LIS, as well as typological studies on evaluative morphology by adding the patterns of a visuo-gestural language. At the theoretical level, the study shows the benefit of combining different approaches (Generative Linguistics, Linguistic Typology, Cognitive Linguistics) for the exploration of evaluative constructions in SLs, as it allows to identify both modality-specific and modality-independent properties. In sum, this book encourages the readers to rely on different data types, analyses and theoretical perspectives to investigate linguistic phenomena in SLs.