Can anybody tell me which is the best materials for a beginner and how can I get the materials?

The best point to start playing with WADE is certainly the WADE User Guide that provides a complete explanation of the features and the architecure of the platform. The Book-Trading example available for download in the download area of the WADE web site (wadeExamples.zip) gives you an idea of how a WADE-based application can look like. A practical tutorial is still under preparation.