Who's Who When Everyone Is Someone Else by C.D. Rose
From Melville House:
In the offbeat style of Wes Anderson, a hilariously charming novel about a heartbroken man trying to redeem himself by championing forgotten books.
Fleeing heartbreak, an unnamed author goes to an unnamed city to give a series of lectures at an unnamed university about forgotten books… only to find himself involved in a mystery when it turns out the professor who invited him is no where to be found, and no one seems quite sure why he’s there.