The “Oxford Bookworms Library” can be considered as the core series in Oxford’s extensive reading program. It is published by Oxford University Press, and now it has large variety of stories. There are 7 levels provided more than 150 stories according to your own ability.    Each book includes an Activities section of “Before Reading”, “While Reading” and “After Reading” exercises, so you can read and enjoy the story more deeply.

If you are interested in the “Oxford BookwormsLibrary”,

the link here; http://www.oup-readers.jp/students/bookworms/index.shtml

If you’d like to buy it, 

the link here; http://www.amazon.co.jp/s/ref=nb_ss_fb/503-1259554-2058333?__mk_ja_JP=%83J%83%5E%83J%83i&initialSearch=1&url=search-alias%3Denglish-books&field-keywords=Oxford+Bookworms+Library&Go.x=11&Go.y=11