This pattern is written in Japanese.
It is charted pattern.

Please download basic information on how to read Japanese charted patterns:
http://www.tezukuritown.com/nihonvogue_ravelry/doc/dl_Jap...

Tools: Japanese size 3/0, 5/0 & 6/0 crochet hooks (2.3, 3.0 & 3.5mm)