User interfaces and supporting documentation are both supposed to help people when using a complex device. But often, these forms of support seem to come from different worlds. User interface designers, document designers, and researchers in both interface and document design share many goals, but are also separated by many barriers. In this book, user interface designers and documents designers from Microsoft Corporation and from Apple Computer, plus researchers from several universities try to bridge the gap between interface design and document design. They discuss opportunities for closer cooperation, and for more integrated and effective help for users of modern technology. Keywords: Man Machine Interaction; User Interface Design; Online Help Design; Document Design; Information Design; Visual Communication; Technical Communication; Gerontechnology Target group: user interface designers, manual designers, designers of instructions for use, interaction researchers, information designers, document designers