WOCCI aims to bring together researchers and practitioners from academia and industry working in all aspects of child-machine interaction including computer, robotics and multi-modal interfaces. Children are special both at the acoustic/linguistic level but also at the interaction level. WOCCI provides a unique opportunity for bringing together different research communities from cognitive science, computer vision, robotics, speech processing, linguistics and application areas such as medical and education. Various state-of-the-art components can be presented here as key components for next generation child-centered computer interaction. Technological advances are increasingly necessary in a world where education and health pose growing challenges to the core well-being of our societies. Noticeable examples are remedial treatments for children with or without disabilities and individualised attention. The workshop should serve as a venue for presenting recent advancements in core technologies as well as experimental systems and prototypes.