I have been a professional test writer for over 20 years and have written 5 IELTS preparation books, including The Official Cambridge Guide to IELTS. In 2015-16 I wrote and developed two IELTS Vocabulary teaching apps and I am currently writing two books: a free e-book aimed at teaching candidates how to study effectively and achieve a high score in IELTS and an interactive e-workbook with interactive IELTS writing exercises focusing on getting ideas, planning, writing and checking.