Faust is a German book by Johann Wolfgang von Goethe, published in 1808. I am still working on my German, so I got an English copy at the library.
The book revolves around a man selling his soul to the devil in exchange for his youth and true love. It is a very thought out book with references to the Bible and some German mythology, and is including some Shakespeare characters.
I first heard about Faust from the 1926 movie with the same name, directed by F. W. Mornau, which is one of my top ten movies of all time. The movie revolved around the same plot as the book and was very well done as well (I will detail more and even make a post of it when I rewatch the movie.)
As I mentioned, the book does have references that you may need to look up to clarify the significance of a character or theme, as I did. The translation I obtained is well worded and I was able to fully understand Goethe’s meaning, though I did buy a German copy on Amazon for $7.
EBay and Thriftbooks are 2 other great options for used books.
There is a part 2, though it is a different story, and it was actually writen by Goethe over many years later in Goethe’s life. I have not read this part.
Overall, if you are looking to get started in foreign literature, especially German, this is a great place to start.