IN the Neverending Story what is the old mans job?

In "The NeverEnding Story," the old man, Mr. Coreander, is the owner of a quaint bookstore. He is portrayed as a somewhat mysterious figure who understands the power of stories and the importance of imagination. He plays a pivotal role in introducing the protagonist, Bastian, to the magical book that leads him into the adventure within the land of Fantastica.