is a German winemaker, historian, and author who creates a popular series of crime novels centered around the character Kurt-Otto Hattemer , a fictional winemaker and amateur detective in Rheinhessen.
He is known for "wine crime" (Weinkrimi) novels that blend local wine culture with suspenseful detective plots. The Series: Kurt-Otto Hattemer
The "03 Winzer" likely refers to , which is the third book in the Kurt-Otto Hattemer series, or potentially the author's real-life takeover of his family winery in 2003 . The Author: Andreas Wagner
Andreas Wagner: books, biography, latest update - Amazon.com
Wagner is a professional winemaker based in Essenheim , near Mainz. He studied history and political science before taking over the 300-year-old family estate, Weingut Wagner , with his two brothers in 2003 .