The IELTS General Reading Practice Tests series has been developed to help students to have more tests to practise with.
It has been recommended by a number of IELTS academics that students engage in practicing for the IELTS exam daily, at least six months in advance, to give them a better chance at getting the score they need.
Of course, that means you're going to need LOTS of IELTS practice tests to help you get prepared!
Through practicing these questions, and other questions in the series, you'll be able to become more familiar with the types of questions asked in the exam, and be better able to answer confidently.