What is the author's tone in One L: The Turbulent True Story of a First Year at Harvard Law School by Scott Turow?

The tone of the book is very informal and engaging, almost as if the reader is having a one-on-one meeting with the author. The language is informal and casual to define the author's personality and energy. There are a few slang usages of words but they are in context with the dialogue and appropriate for the work. The narrative is also very high energy with a sophisticated wit belying the author's own personal style of speaking and managing his interactions with his student colleagues and professors.