Access overlays
Proceedings of the 24th annual ACM symposium on User interface software and technology - UIST ’11
Meredith Ringel Morris
Shaun K. Kane
Jacob O Wobbrock
Daniel Wigdor
Richard E. Ladner
Audio-Based Feedback Techniques for Teaching Touchscreen Gestures
Follow that sound: Using Sonification and Corrective Verbal Feedback to Teach Touchscreen Gestures