Book excerpt: Research Methods in Sign Language Studies is a landmark work on sign language research, which spans the fields of linguistics, experimental and developmental psychology, brain research, and language assessment. Examines a broad range of topics, including ethical and political issues, key methodologies, and the collection of linguistic, cognitive, neuroscientific, and neuropsychological data Provides tips and recommendations to improve research quality at all levels and encourages readers to approach the field from the perspective of diversity rather than disability Incorporates research on sign languages from Europe, Asia, North and South America, and Africa Brings together top researchers on the subject from around the world, including many who are themselves deaf