In 1779 Unger requested a print shop for himself and in January 1780 he was granted one. Later, he expanded it to a publishing bookseller, in which he published works by Johann Wolfgang Goethe, Friedrich Schiller, Friedrich Schleiermacher as well as August and Friedrich Schlegel.
In 1779, Unger sought a printing shop for himself, and in January 1780, he was granted one. Later, he expanded it into a publishing bookstore, where he published works by Johann Wolfgang Goethe, Friedrich Schiller, Friedrich Schleiermacher, as well as August and Friedrich Schlegel.