1. The Official Guide to the TOEFL Test (3rd ,4th, 5th editions) + AUDIO+ Software

When you’re shopping for TOEFL books, it can be hard to know which are high-quality and which you should walk away (if not run away) from! That’s why I’ve put together this list of TOEFL book reviews: the best TOEFL books of 2018 – 2019. Here, you’ll see exactly why some books stand out from the crowd—and learn what to avoid when searching for good TOEFL prep.

RANK		PRODUCT NAME	SCORE
1		Cambridge Preparation for the TOEFL Test Book with Online Practice Tests	9.7 Score	Buy Product
2		5 lb. Book of TOEFL Practice Problems: Book + Online Resources	9.5 Score	Buy Product
3		Longman Preparation Course for the TOEFL® iBT Test	9.3 Score	Buy Product
4		TOEFL iBT Preparation Book: Test Prep for Reading, Listening, Speaking, & Writing on	8.9 Score	Buy Product
5		Official TOEFL iBT Tests Volume 2, Second Edition	8.7 Score	Buy Product
6		Official TOEFL iBT® Tests Volume 2	8.2 Score	Buy Product
7		4 Practice Tests for the TOEFL 2019-2020: Listening Tracks Online + Mobile	8.0 Score	Buy Product
8		Speaking and Writing Strategies for the TOEFL iBT	7.7 Score	Buy Product
9		Official Guide to the TOEFL Test With CD-ROM, 4th Edition	7.5 Score	Buy Product
10		TOEFL iBT Prep Plus 2018-2019: 4 Practice Tests + Proven Strategies + Online	7.2 Score	Buy Product

There are some free ebooks of them. 

1. The Official Guide to the TOEFL Test (3rd ,4th, 5th editions) + AUDIO+ Software

2. Preparation Course for the TOEFL iBT Test

3. Cambridge preparation for the TOEFL test 3rd edition

4. 4 PRACTICE TESTS FOR THE TOEFL 2019-2020

5. NOVA’S PRE-TOEFL GUIDE: ACADEMIC ENGLISH PRACTICE BY BRUCE STIRLING

6. TPO 1-54 Offline software download for free (The best software for Toefl iBT) (Recommendation)