An existing data base of a library is the requirement for the enablement of students to look for books. A data base was not available for us. Therefore, we created a little XML database. We decided on using the Microsoft Silverlight for the usage of this data base and the visualisation of the data. Unfortunately, the Microsoft Silverlight had been in a phase of development by the time of our project. Furthermore, we determined to use an Orbit form for the visualisation of data and for the support of rummaging features. The illustration of a book cover which is one of these features, helps the user to get a first impression about the content of a book. If the user would like to have more information about the book, he or she can use the detail window on the right side. This detail window and the window in the low area can be faded in and out. This way the user is able to increase or decrease the main area. For the searching of specific books, the users can use the searching feature in the low area.