This is a practice test book for the TOEIC L&R TEST: "Ultra-Realistic Mock Tests 600 Questions Vol. 1" created by a perfect score group! It contains 3 sets of mock tests (600 questions) in the actual TOEIC L&R test format. Includes a CD. For book purchasers only, a fully integrated app is included, providing detailed explanations for all questions and an automatic scoring function. Features high-quality mock tests and detailed explanations created by a "perfect score group"! Please feel free to message me if you have any questions m(_ _)m