Go to http://www.landor.com and search their portfolio "Landor > Our Work > By Expertise > Identity. Choose one example of their logo work. It is important that the example you choose is based around a logo design or a logo redesign.
Be prepared to take a quiz first thing in class. You will be asked to explain why you thought their design/re-design was successful or not. You should be able to discuss the target audience, company objective and the visual solution. This is an oral quiz but please bring notes so you can be complete in your evaluation of the case study.