Franz Kafka 
Metamorphosis 

The Metamorphosis (ger: Die Verwandlung, also sometimes translated as The Transformation) is a novella by Franz Kafka, first published in 1915. It has been cited as one of the seminal works of fiction of the 20th century and is studied in colleges and universities across the Western world. The story begins with a traveling salesman, Gregor Samsa, waking to find himself transformed (metamorphosed) into a large, monstrous insect-like creature (Excerpt from Wikipedia)