This is the original edition published in France in 2003. This is the Spanish edition
(however there are only two pages of text).
This was a completely revised edition of a sketchbook first published in 1996. It reproduces all of the original sketchbook drawings plus a new version of each drawing. On opposing pages, we see the original sketchbook drawings and Wendling's new, finished version of each drawing. It's like looking at the rough animation and the clean-up drawing each done by the same artist. Incredible.