"TOEIC Test English Grammar: Conquer in 5 Days." By Naoki Koike, published by PHP Bunko. This is an English grammar book useful for TOEIC preparation, with content that allows you to improve your practical skills in a quiz format. [Author] Naoki Koike [Publisher] PHP Bunko [Genre] TOEIC Preparation, English Grammar Purchased at Kinokuniya Bookstore in Singapore around 2008-2010. I may have flipped through it, but it's practically new. Thank you for your consideration.