Mathematics problems are not alike in the way they come to the students’ attention. As interesting as the diversifi ed nature of Maths Olympiad questions is the constant curious nature of our minds. As a writer and coach of MO for many years, my curiosity intensifies each time I ask my students to present their solutions to problems as part of the training, that is, to articulate their thinking process and reasoning skills. This book is written specially for my students and others alike who also enjoy mathematics.