|Solo Photobook by Takahashi Ai|
|Released|| May 27, 2010 (print)|
December 18, 2012 (ebook)
|Cooperation with||Up-Front Agency|
|Takahashi Ai Publication Chronology|
|Next|| LOVE NO.10|
Katachi (形; Shape) is Takahashi Ai's 11th solo photobook. It was released on May 27, 2010. The ebook version of the photobook was released on December 18, 2012.