Selectively mute children are at a significant disadvantage personally, socially and educationally. This unique manual emphasises practical assessment and treatment and provides advice and information, filling a significant gap in the availability of suitable resources in this field. - Uses an approach based on behavioural principles and a hierarchy of stages of confident speaking originally conceived by Anthony Glassberg. - Summarises relevant literature and theory and provides detailed ideas on assessment and management. - Includes case examples, photocopiable material, and a discussion about progress, transfer and discharge. - Written for teachers, clinical and educational psychologists, speech language therapists, child psychiatrists and parents.