This document outlines 9 common mistakes made when writing IELTS essays and how to fix them. The mistakes include misunderstanding the question, starting writing before understanding the question, having an incorrect essay structure, using words in the wrong context, incorrect use of phrases and idioms, incorrect use of tense, incorrect use of definite and indefinite articles, missing definite and indefinite articles, and incorrect spelling of common words. The document then provides tips on how to fix each mistake, such as reading the question carefully, planning before writing, learning essay structure, improving vocabulary, reading newspapers and books, and studying spelling.