If you want to know more about sculptures there are 2 books that explain it in a simple way.
Sculpture Book 1 and 2 help define the meaning of sculptures
These two slim volumes are designed as a cataylst to critical enquiry, not
how-to books not text books not lesson plans but designed as a thematically
based launching pad for ideas. Targeted at readers of a mid high school level
and assuming no prior knowledge, and for teachers with little knowledge of
sculpture as a handy reference of ideas.
Click here to view information on 'Sculpture Book 1'
Click here to view information on 'Sculpture Book 2'