The Devil Wears Prada by Lauren Weisberger

The Devil Wears Prada (2003) is a best selling novel by Lauren Weisberger about a young woman who, freshly graduated from college, is hired as a personal assistant to a powerful fashion magazine editor, a job that becomes hellish as she struggles to keep up with her boss's capricious and demeaning requests. The book The Devil Wears Prada spent six months on the New York Times bestseller list and became the basis for the 2006 film The Devil Wears Prada, starring Meryl Streep, Anne Hathaway, and Emily Blunt.
The novel The Devil Wears Prada begins with its main character, Andrea Sachs, stuck in midtown Manhattan traffic, trying to remember how to use a manual transmission. She is driving a Porsche roadster that belongs to her boss, Runway magazine editor Miranda Priestly. Sachs must deliver the roadster from the repair shop to Miranda's apartment in time for Miranda's family to go to the Hamptons for the weekend. While she is attempting to do this, Miranda calls Sachs on her cell phone and excoriates Sachs for not doing her job properly. Miranda also tells Sachs to pick up her pet French bulldog (Persian kitten in British edition) from the veterinarian's office. Trying to comply, Andrea ruins some of the expensive designer clothing she is wearing. She wishes Miranda would die. But if that did happen, she reminds herself, she would lose the pleasure of killing Miranda with her own hands... (Summary by Wikipedia)