If you’re serious about learning Japanese, don’t buy this book without first checking out the kana version. Japanese for Busy People I comes in two versions. They cost the same, cover the same grammatical ground, using the same dialogues and the same vocabulary. The CDs and workbooks that you can also buy are equally applicable to both. The only difference is that this version uses mainly western characters (known as romaji), and the other uses only Japanese characters (known as kana) to write Japanese. I bought this romaji version, but less than halfway through spent the money again, to buy the kana version.