Query regarding approach to ipcc audit

Friends I am an ipcc student . The institute has issued two study materials for auditing,namely :

• Auditing and assurance
• Standards on auditing(auditing pronouncements)

First book is OK but second book seems to be tough. Is it necessary to study the second material? or Are the portions of the second material has already been covered in the first one?? I am confused. Can I get 70+ marks by studying first material and practice manual thoroughly?? can any one please help me to solve this dilema??