What a pity that this kind of books with such a specific topic are so scarce!
You could make a thread with all the existing volumes, no?
I know of 2 volumes edited by Ulrich Raue on Lineol and Elastolin/Tipple Topple.
Another one on Lineol (controversial to most compo figure collectivists I have interacted with).
A wonderful book on Chialù and Nardi by Andrea Raugei.
Another volume of the Nardi Fratteli production (with a chapter dedicated to the fauna).
The book that collects all the Spanish made animal figures, written by Jordi Vider.
A booklet-catalog-magazine about the Starlux fauna.
Schelich's book.
Kerapolin's not distributed booklet-catalog, a rare curiosity.
More...?