Countless - but not all - students or immigrants who want take the IELTS Examination for a quantitative assessment of their English-language skills for entry to universities in the Canada, UK, Australia or USA take course to organize for the test itself. It's a strongly recommended idea.
People with extremely high English skills can do fine in the exam with no training. But even a lot of of them find the harsh time limits on the writing tasks, for instance, to produce IELTS 'band' scores that do not precisely reflect their real writing skills.
Even its creators approved that IELTS is a complicated test. Question types - there are 10 in all - are frequently not used in a simple manner, requiring both nimbleness of thinking and additional time in answering on the part of the IETLS applicant. Learning how IELTS asks questions, in addition to the kinds of questions it asks, can make a important difference in general performance.
Possibly most seriously, for both the writing and the speaking tasks - the most hard for most candidates anyway, for the reason that they involve self-expression in English - are predictable to be performed consistent with established IELTS formats. On the other hand, the administrators of IELTS make obvious those formats nowhere in their published text. For that subject, the formats are not frequently made clear in the numerous books on IELTS preparation on the market.
For all these reasons, to obtain the IELTS band score that most precisely reflects your real English-language skills, some kind of tutorial is advised. In large cities with educational centers, there are universities, schools and private companies that offer such IELTS- training courses. In such places, it is also usually possible to find private tutors, though looking for them out can be harder.
The books on IELTS Exam preparation are astonishingly poor overall. There also are online courses. Looking in your preferred search engine for 'IELTS online preparation' will give you with some sensible choices.
If not you know your English skills are at or near the native-speaker level, it is powerfully advised that you take some kind of IELTS tutorial previous to you take the exam to get the band score that most precisely reflects your real skill level. On the other hand, taking an IELTS-preparation course to get better your English skills is wrong-headed. That must be done in another background. There is too much to be taught about the IELTS Exam itself to let for the teaching of skills at the same time.