There are 9 principles for wannabe ultralearner to adopt as per the book . After reading them all I have reduced them into one which is to work very very hard. The book doesn't say anything new or different but it tries to answer How to apply what you already know about learning to your learning goals. I really enjoyed the chapters on Directness, Intuition. Some chapters like Metalearning , Feedback , Retention are basic and are required for all types of learning not just ultralearning. The chapter of Drill - is important to burst air pockets of during learning. All in all an excellent book for all types of learners and students.