You may also decide to videotape or audiotape your defense, as it can help you keep track of the reactions, suggestions, and criticisms that you receive. Often your thesis committee members will offer tips for revision. These could be crucial as you revise your work for later publication or development. But you will be so focused on what you need to say next during your thesis defense that you will very likely not remember much of what the professors said after the fact. If you document the session, you will later be able to retrieve and follow the expert advice your thesis committee offered during your defense.