Stephen Chbosky wrote the book 'The Perks of Being A Wallflower'.

The story behind the answer

True—Stephen Chbosky is the author of The Perks of Being a Wallflower, first published in 1999. Written as a series of letters from shy teen Charlie, the novel captures the turbulence of adolescence—friendship, grief, mental health, and identity—earning cult-classic status and frequent spots on school reading lists.

Chbosky also wrote and directed the acclaimed 2012 film adaptation,