What is the author's style in My Sister's Keeper by Jodi Picoult?

Each chapter in the book is told from the first person point of view. All the main characters narrate a chapter. They even have their own fonts. Picoult could have made this Kate's story since it is the central issue, but she allows the characters to share their own stories. Kate has one chapter, and it is the final one. The other characters have more than one chapter each. The reader can see the effects of Kate's illness on the Fitzgerald family. Everyone in the family despairs about Kate's illness and Anna's lawsuit, but they have different perspectives. The reader sees Campbell and Julia's thoughts on the lawsuit and also their feelings about each other. By viewing Anna's thoughts, the reader can see she does not take her decision to sue her parents lightly and that she is smart and perceptive. Jesse seems like an unlikable person, but his thoughts and actions show his pain over Kate's illness and his helplessness.