At the moment, concentrate on key terms and understanding the audit process. Later, when you are practising questions, you can use that to go to the text and learn what you don’t know. I think that starting at the beginning of the text and working through, learning everything is not practicable.
Key areas are::
Planning Assertions Controls and tests of controls Substantive testing Audit reports
Remember that most of the marks in the exam will be for applying knowledge to scenarios rather than simply repeating knowledge.