The questions inside the book are in the same style as those found in the PPL exams, making it suited for those people intending to take their flying forward to a professional career. For people intending to fly commercially, the contents of this book represent the minimum knowledge required by anybody taking modular distance learning courses (for which the PPL is a minimum requirement). There are separate chapters for each subject involved. Answers (with explanations) are given at the end of the book. There is an Appendix containing various pictures, graphs, etc. for use in the questions. Repetitive questions have been eliminated to make room for others, where the answer is obvious.