Gottfried Keller was a Swiss poet and writer of German literature. Best known for his novel Green Henry and his cycle of novellas called Seldwyla Folks, he became one of the most popular narrators of literary realism in the late 19th century.

German literature comprises those literary texts written in the German language. This includes literature written in Germany, Austria, the German parts of Switzerland and Belgium, Liechtenstein, Luxembourg, South Tyrol in Italy and to a lesser extent works of the German diaspora. German literature of the modern period is mostly in Standard German, but there are some currents of literature influenced to a greater or lesser degree by dialects.