The Book of Ellie consists of two main modes, the Book and the Game mode, which users can interchange at anytime during interaction. When in Book mode, the system
recognizes the currently open book page and displays its electronic version. The child can interact with the physical book by pointing with its finger at any letter or text passage of interest and listen to its pronunciation. In Game mode, the child is prompted to answer a series of test questions on the learning material, by placing cards on the table.