Spring 2020 - Dr. Tingley is the best! Spring 2020 was his first time teaching LS40 and you would have thought he has been teaching this course for years. He made the class environment comfortable and enjoyable. I would recommend this course over Stats 13, as we learn skills that are more applicable and valuable for the future. Dr. Tingley did a great job teaching difficult concepts and made doing well in the class highly achievable. There is coding involved, but as long as you took LS30A-B and felt decently comfortable in your coding skills, you will do great.