We particularly recommend this book to help you prepare for your IELTS test.
IELTS Official Practice Materials Volume 2
IELTS Official Practice Materials Volume 2 includes Academic and General Training sample tests for all modules: Listening, Reading, Writing and Speaking, as well as answers with examiners’ comments.
It also includes a DVD containing a practice Listening test, answers to the sample tests, and video clips of three students taking the Speaking test.
It can be purchased from the British Council office for 22 GBP.