It is an introductory guide to the study of economics for Pre-University students. It presents in a clear and concise manner the essential concepts of economics which students must master in the first year of the Pre-University course.. It has been specially written as an aid to the non-English stream students studying Economics in English. However, its comprehensive coverage should prove invaluable to the English stream students as well. The book comprises 20 units. Each unit is followed by multiple-choice and essay questions, and comprehension and language practice.