I think it's a good idea. I think we should be able to add books as we like to pass on to other PTers too. My favorite animals book are My Dog Tulip and Never Cry Wolf.
http://www.amazon.com/Tulip-York-Rev.../dp/0940322110


edit:
I found out My Dog Tulip has been made into an animated movie.
http://www.tulipthedog.com