For almost 3 decades, research on auditory displays and sonification has been well advanced. Now, the auditory display community has arrived at the stage of sonic information design with a more systematic, refined necessity, going beyond random mappings between the referents and sounds. Due to its innate transdisciplinary nature of auditory display, it would be difficult to unify the methods to study it. This special issue covers a diverse collection of approaches to auditory displays, involving art, design, science, and research. Accordingly, the works in the present special issue included new theories, frameworks, methods, and applications about auditory displays and auditory user interfaces. We hope that this special issue can provide the state of art of auditory display research and auditory user interface design, offering fresh inspiration and motivation to researchers and designers for their future works.