1分間英会話　完全版360 1.0

This bestselling series, 1分間英会話 完全版360, has sold over one million copies and was the top business book of 2009 according to the NiPPAN survey. It is now available in a version designed for everyday English conversation. It is easy to understand the words in the book instantly and categorize them in red, green, yellow, and blue. Red words are those that can be understood in zero seconds, green words in three seconds, yellow words that are familiar but can't be recalled, and blue words that are completely new. By focusing on the red and green and yellow words, it is possible to master English words in the shortest amount of time.