My german Rails book “”http://www.amazon.de/Webanwendungen-Praxiseinstieg-Installation-Testing-Erweiterung/dp/3827324912/" title="Amazon">Webanwendungen mit Ruby on Rails" I wrote together with Ramon Wartala is done and should be in the stores by the end of the first week in May. It is a typical beginner book using a sample application to show off the whole stack.
More to read at my german blog. If you like to read german books, buy it. Now!
