Some more info:


Harmer: How to teach English


New edition with DVD:

Chapter 3 Managing the classroom, especially the following parts: Using the voice, Talking to
students, Giving instructions, Student talk and teacher talk, Using the L1


Old edition without DVD:

Chapter 3 How to manage teaching and learning, especially the part How should teachers user their
voices in class

Chapter 1 How to be a good teacher, especially the following parts: How should teachers talk to
students? How should teachers give instructions? Who should talk in class?


The new edition brings more information.