Overall, quite good. Biophilia: good presentation, visuals, and interactions. Barbara is charming. Materials and Finishes: Fred Jackson is knowledgeable but he needs better visuals and more intteraction. Lighting in Practice: Beautiful projects and Charles Thompson is very knowledgeable and well spoken. I would hire him for my projects but I didn't take away any great tips. I did like "Listen To Understand" so I guess that is a great tip. Lynne Wilkinson: Terrific! I always enjoy her classes. She is delightful and does an excellent presentation. It is fun to watch her have fun.