Hello Aspirant,

Hope you are doing well...

Some of the most referred books for IELTS are:

• The official Cambridge guide to IELTS
• Barron’s IELTS Superpack
• Check Your English Vocabulary for IELTS
• Barron’s IELTS Superpack
• Simone Braverman’s Target Band 7
• Cambridge IELTS 15 Academic Student’s Book with Answers

To know about the IELTS exam, its exam pattern, prpearation tips, etc., refer here:

https://studyabroad.careers360.com/exams/ielts

Hope this was helpful.

Should there be any other queries, please feel free to ask.

Good Luck!