A key part of any good TOEFL preparation book is that it gives explanations and tips for how to answer each of the question types on the TOEFL.

These can make studying more productive and faster than it would be without a prep book because you’ll learn the best way to answer questions without having to do trial-and-error methods on your own.

ETS offers a variety of practice materials to help you prepare for the TOEFL iBT® test and build your English skills.

Materials include free sample questions, practice tests, interactive skill-building programs, and detailed tips and information for understanding more about the test.

Books Test of English as a Foreign Language Preparation

Cracking the TOEFL IBT
2006

Cambridge Preparation for the TOEFL Test
1993

Heinle and Heinle's Complete Guide to the TOEFL Test

Delta's key to the TOEFL® test
Nancy Gallagher, 2000

Cambridge Preparation for the TOEFL Test
2002

Longman Complete Course for the TOEFL Test
Deborah Phillips, 2001

Barron's Practice Exercises for the Toefl Test
Pamela J. Sharpe, 1995

Toefl Test Preparation Kit
Educational Testing Service, 1995

Check Your English Vocabulary for TOEFL: Essential Words and Phrases to Help You Maximize Your TOEFL Score
2004

5-Step TOEFL Prep for Advanced Students
2009

TOEFL IBT Superpack: CD-ROM
2016

Barron's TOEFL IBT Superpack, 2nd Edition
Pamela J. Sharpe, 2006

Oxford Preparation Course for the TOEFL IBT Exam: A Skills-based Communicative Approach
Susan Bates, 2011

Cambridge Preparation for the TOEFL® Test Book with CD-ROM
2002

Longman Preparation Course for the TOEFL Test: IBT
Deborah Phillips, 2007

Longman Preparation Course for the TOEFL IBT Test
2014

Pass Key To The Toefl
Pamela J. Sharpe, 1994

The Heinemann TOEFL Preparation Course
1992

Regents/Prentice Hall TOEFL prep book
Lin Lougheed, 1986

Preparation for TOEFL
1990