This volume in the NATO Special Programme on Advanced Educational Technology addresses fundamental principles in the design of a dialogue component in intelligent tutoring systems. The purpose of the book is to link fundamental issues of communication and interaction to the more restricted domain of instructional dialogue. The papers are grouped into parts on: theoretical issues in instructional dialogue; theory into practice - interaction in learning environments; natural dialogue and interaction theory; and feedback and control in human-machine communication. The book originates from a NATO...

On his 23rd birthday, a young man from a wealthy family discovers that he is from an alien bloodline and is their messiah, the key to their sinister plan to destroy the Earth and fulfill their covenant. Hez Harrington's family has kept a wicked secret from him all his life. He didn't know that his parents had promised him to another woman and a being from another planet. His enemies are the richest people in the world and really evil distant family members. It just goes to show, you can't pick your relatives. How is he supposed to reconcile his human heart with the face he now sees in the...