Question: which are the best ielts books?
Answer: Barron's IELTS Superpack. This Superpack combines all of the necessary Barron's IELTS materials into one, thus the name Superpack! ... 
The Official Cambridge Guide to IELTS. ... 
Cambridge IELTS 13 Academic Student's Book with Answers. ... 
Official IELTS Practice Materials. ... 
Road to IELTS.