The book is called Progressive Greek Grammar by Jason JC Jung! He was my professor in Greek studies here at Southwestern until the Lord called him to serve in Korea. You need to buy this book. There is perhaps no better way to learn the language then getting ahold of one of these copies. Equally as important as the content is the author. If you wish to learn this Sacred language then you need to learn it from one who reverently fears God and takes His Words seriously.