There are :
- A Life
- A Book
- Dome Tour 2001 (A history book)
- Hamasaki Republic (I don't know if it can be considered a photobook)
- Uraayu
- MY STORY photobook (released during AT 2005)
- Off my day / On my way (with (miss)understood album)
- GUILTY photobook
- A Complete All Singles photobook
- RnRC photobook
- SUPER Ayu
- LOVE again
And then you have a lot of pamphlets for the tours.
You have some pics here :
http://zyrex.org/gallery/Ayumi1/AyuBooks/