You might want to order it as it is (1)hardcover, 
(2)readable in English, (3)contains all of the 
same information and pictures as the original 
Japanese one. It was released partly by Miramax 
when the film came out in 1999. You should be 
able to still find this book at Amazon.

Lastly, the use of CGI in Mononoke Hime was 
tastefully done. After reading the "creative 
process" section you will understand why Studio 
Ghilbi decided to experiment further with the use 
of CGI. Details used in the backgrounds, 
painting, timing, movement, and naturally for the 
FX was partly why Ghilbi used it. However, CGI 
alone could not replace the quality cels have and 
thus far, Ghilbi has not done away with cel use 
completely. Good luck and remember check out the 
book all your questions, at least technical ones, 
should be answered. ^_^