We particularly recommend the following books to help you prepare for your IELTS test. You can buy books online here.
How to prepare for IELTS is a British Council publication that contains advice, exercises and practice tests for the four components of the test: Listening, Reading, Writing and Speaking. It covers both IELTS Academic and IELTS General Training.
The book comes with a CD containing Listening and Speaking interview extracts. This book is suitable for home study or for use in class.