"Thirteen Reasons Why" by Jay Asher is a young adult novel about Clay Jensen, a high school student who receives a mysterious box containing seven cassette tapes recorded by Hannah Baker, his classmate and secret crush who recently committed suicide. On the tapes, Hannah reveals the thirteen reasons—and thirteen people—behind her decision to end her life, and Clay is one of them. As he spends one heartbreaking night listening to Hannah's voice and following her through town, Clay uncovers painful secrets about his classmates and learns how small acts of cruelty can compound into tragedy, ultimately understanding the importance of kindness.