Willow is a young adult novel.
Summary from Barnes and Noble:
Seven months ago, on a rainy March night, sixteen year- old Willow's parents died in a horrible car accident. Willow was driving. Now her older brother barely speaks to her, her new classmates know her as the killer orphan girl, and Willow is blocking the pain by secretly cutting herself. But when one boy —one sensitive, soulful boy—discovers Willow's secret, it sparks an intense relationship that turns the "safe" world Willow has created for herself upside down.
I loved this book. I had heard really good things about it, and it didn't disappoint. The characters are believable, the relationships are real, and you feel all of the pain that Willow is going through as if it's happening to you. I cried a lot while reading it, and will definitely check out more by this author. Highly recommend this one!