Maybe you have not seen
The Improve your IELTS Skills series are aimed at students between bands 4.5 and 7.5. The series has three preparation courses, Academic Reading, Academic Writing, and Listening and Speaking. The courses develop language, skills and test technique to help students achieve a higher IELTS score. The three books in the series may be used together as a complete course or may be used to target specific skills. Or they may be used separately to supplement other coursebooks.