This course manual provides everything you need to know in one easy to read book. It covers all the sections of this online course in short manageable chapters. There is a chapter index at the beginning so you can find your way round easily and the index has clickable hyperlinks which take you directly to the topic you are interested in. Within each chapter, there are clickable hyperlinks to primary references and carefully curated external websites. You can download this course manual to your own device and refer to it at any time. When you come to take the quiz, you can refer to it as you answer the questions.