features: 15 actual tests are similar in form and content to those of the real ibt 15 actual tests consist of 10 real – level tests and 5 advanced – level tests passage analyses and answer clues are available in a separate refernce book, which is also designed to help students independently summer notes are provided and run parallel to each passage to help students graps key points and concepts glossary is provided to help students understand the definition of challenging words explanatory answers are provided, including analyses of correct and incorrect answers graphic organize is provided to help students comprehensively view the overall structure of the passage