Ebook: Moderating Usability Tests: Principles and Practices for Interacting (Interactive Technologies)

If you would like to get a good understanding of what it takes to facilitate a usability test, this is a perfect guide. It provides an incredibly insightful overview of the entire process paying particular attention to the issue of interacting with the participants. You will get tons of practical information as well as theory and observe videos demonstrating examples of test moderation. It's just a great book!