We do not provide books – you need to buy whatever books you need from Kaplan (or from BPP – the other ACCA Approved Publisher).
If you are watching our free lectures then you do not really need a Study Text – the lectures are a complete free course and cover everything needed to be able to pass the exam well.
What is important (however you choose to study) is that you buy a Revision Kit from one of the ACCA Approved Publishers. They are. full of exam standard questions for practice, and practice is vital to passing the exam.