"13 Reasons Why" is an American teen drama television series based on the 2007 novel "Thirteen Reasons Why" by Jay Asher. The show follows high school student Clay Jensen, who receives a box of cassette tapes recorded by his classmate and crush, Hannah Baker, who died by suicide. Each tape details one of the thirteen reasons why Hannah chose to end her life, revealing the people and events she holds responsible. Besides its narrative on teenage struggles, the series highlights issues such as depression, bullying, sexual assault, and suicide among youth. It has sparked both critical acclaim for its themes and performances, especially from the first season, as well as controversy and concern from mental health professionals due to its graphic content and depiction of sensitive topics.