Learning is a critical worldwide problem for humans, essentialto create a peaceful and happy world. We have serious problems inlearning in both wealthy and poor areas. New approaches to learningare needed, as the current system may not rise to the new challenges.This book proposes a new strategy for learning, worldwide and for allages of students. Computer-based distance learning would be the majordelivery mechanism, with very large numbers of students. The veryfrequent interactions between the student and the computer would belike that with a skilled human teacher. These interactions would takeplace in the student's native language, in both directions. A typicalinteraction would be a question to a student, and a free-form studentresponse. Both voice and keyboard student input would be possible. Thelearning programs would work with each student until mastery isachieved, adapting to the needs of each. Students would be activelearners. The book begins with the problems and goals of learning. It considerspossible forms of distance learning, looking at the variablesinvolved, current examples of distance learning, and possible futureforms including examples from science fiction. It then investigatesstudent interactions, considering both frequency of interactions andthe quality of each interaction. Programs developed in the EducationalTechnology Center at the University of California, Irvine, illustratethe critical idea of tutorial learning with computers. Production oftutorial learning material and costs for a student hour of learning isdiscussed. The book ends with suggestions for future progress. Current hardware and software is fully adequate for the tasksdescribed. Development of allrequired learning units is a majoractivity. After this development, both better quality of learning andlower costs are very likely. Further experimental work is essential tounderstand the possibilities.