These notes are for use by Adavanced Level, Grade 11 and 12, first year Economics and MBA students. The notes cover both Microeconomics and Macroeconomics topics that are included in any Principles of Economics book. The notes cover almost all the chapters that you may expect to find in any Principles of Economics textbook. The notes were professionally prepared by a practioner who also sets and marks examinations in Principles of Economics. In addition, the notes are user friendly and straight to the point and they can become your companion when you are preparing for your examination.