Diary is a 2003 novel by Chuck Palahniuk. The book is written like a diary. Its protagonist is Misty Wilmot, a once-promising young artist currently working as a waitress in a hotel. Her husband, a contractor, is in a coma after a suicide attempt. According to the description on the back of Diary, Misty "soon finds herself a pawn in a larger conspiracy that threatens to cost hundreds of lives."
Diary loosely falls into the modern horror genre, putting aside violence and shock tactics in favour of psychological scares and dark humor.
The audio version of Diary is narrated by actress Martha Plimpton.