highly recommended book for all IELTS Topics
https://www.amazon.com/dp/1723930857?ref_=pe_870760_150889320
IELTS IDEAS: Topic Ideas for all question types with more than 100 essays
https://www.amazon.com/dp/1723930857?ref_=pe_870760_150889320
IELTS IDEAS: Topic Ideas for all question types with more than 100 essays