(The following pictures were taken from a new book that we just received courtesy of Curzio Vivarelli. The text is in German, however, there are many construction diagrams that are relatively easy to interpret.  There is a good mix of both tailless and conventional type aircraft with some of them being based on an actual design, like the Fauvel gliders.  The book is published by:  Weltbild Verlag GmbH, Augsburg, Germany. 1999.  (IBSN 3-8043-0536-9)