Taking the TOEFL is a necessary step for any non US educated student wanting to study at a North American university. It is also increasingly required from other educational institutions throughout the world, as well as a desired or mandatory job qualification.
Longman provides this excellent, well-rounded guide to the TOEFL test. It prepares students not only for the more common computer based test, but also for the paper test as well. A sure bet from one of the grand names in ESL publishing.
One of the modern classics on taking the TOEFL successfully, this is the latest version of Bruce Rogers famous book including audio published by Peterson's.
If you are sure that you will be taking the TOEFL on Computer, this is an excellent choice which includes a CD-ROM with plenty of practice materials to prepare you for the computer version of the test.
This is a different approach to preparing for the TOEFL published by Barron's and by Pamela J. Sharpe. This preparation using audio to help you focus on strategy and learning methods that will help you do well on the TOEFL.