This book, which is one of a series of papers from the University of Duisburg, is a justification of the visual elements of a particular computer-assisted language learning program for learning Dutch called EuroLex. About one third of the book is a description of the EuroLex program. Because of this, it suffers from the seemingly unavoidable problem that many accounts of CALL programs face, and that is the need for elaborate step-by-step description of the operation of the program when five minutes working with the actual program would convey more information more effectively.