The number of published books is increasing. 33 books about the best hotels and resorts around the world has been written by Mr. Horrmann, e.g. the guide ‘The ultimative 99 best hotels of the world’ (Ullstein Verlag, 2002).

Very successful is the guide series ‘In fremden Betten’ (‘In foreign beds’), published by Klocke Verlag. Latest release is guide no 3 with 50 new short stories about the best high-end luxury hotels.

For the German newspapers ‘Welt’ and ‘Welt am Sonntag’ Mr. Horrmann writes the weekly columns ‘In fremden Betten’ and ‘Horrmann unterwegs’. For the papers ‘Berliner Morgenpost’ he publishes gourmet tests of the leading restaurants in Germany’s capital Berlin.

Furthermore, Mr. Horrmann publishes columns in 'Top hotel', the leading magazine for hotel management in Germany, and in 'HIGH LIFE' (Lifestyle magazine) and 'FOOD & WINE'.