Introduction to Toy Computing.- Toy Computing Background -- Mobile Computing Toys: Marketing Challenges and Implications -- Toys and Mobile Applications: Current Trends and Related Security Issues -- Emerging Human-Toy Interaction Techniques with Augmented and Mixed Reality -- Advanced Sound Integration for Toy-Based Computing.- Augmented Reality for Mobile Service of Film-Induced Tourism App -- Privacy Requirements in Toy Computing -- Case Study: Approaching the Learning of Kanji through Augmented Toys in Japan.