The first thing is which language center u choose.This is because different language center has different courses.Usually, those course are focus on their own university system. For example CET is belong to university of Sydney,so the courses are concern about everything you have to do during the master in University of Sydney, like how to write essays,how to do the group reports and how to have a presentation. Those things all different from Ells. They are different test systems.Usually, the language study will begin in the morning and take 4 or 5 hours. Some of them begin at afternoon. It depends on the school which will arrange your courses.YOU don't need bring any books coz the language school has books for you. And except you want to take another ELLS exam in AUS, you can bring some ELLS books.Language school are boring but you can meet many friends from different countries. SO GOOD LUCK!