Michael Pollan is an author, journalist, activist, and professor of journalism at the UC Berkeley Graduate School of Journalism. His new book is called "How to Change Your Mind".Michael Pollan is an author, journalist, activist, and professor of journalism at the UC Berkeley Graduate School of Journalism. His new book is called "How to Change Your Mind".Michael Pollan is an author, journalist, activist, and professor of journalism at the UC Berkeley Graduate School of Journalism. His new book is called "How to Change Your Mind".