I was especially interested in the material that was considered for the original Fantasia. I recently saw Fantasia 2000 and during this feature they talked about some ideas that were considered and discarded for Fantasia 2000. I found it particularly interesting to see that some material originally considered for Fantasia was actually used for Fantasia 2000 and other material considered for Fantasia was also considered for Fantasia 2000, but still not used.
I recommend this book to anyone (who is lucky enough to find a copy) who is interested in Disney animation and some of the material that might have come from the studio that never made the grade.