Please note that the content of this book mainly consists of articles that are available online from Wikipedia or other free sources. Achterbahn Verlag was founded in the summer of 1991 by Rötger Feldmann and Jens Nieswand. At the end of 1995, it was converted into a public limited company and eventually went public in October 1997. In 1999, the revenue of Achterbahn AG was 14.5 million euros. In 2003, Achterbahn AG went into insolvency. The company filed for insolvency at the responsible district court in Kiel in the fall of 2002. Numerous individual companies of the AG, such as Nieswand Druck and Achterbahn Verlag, continued as limited liability companies (GmbHs).