Hi My friend was also wondering what a book that he has is worth. He has "Exotic Tropical Fishes expanded edition (Looseleaf)" by Axelrod, Emmens, et al. Vol. 1 & 2. We tried looking at some places that carry used aquarium books but there wasn't a book on that list by that name. Could you please let me know what price people are willing to pay for these books if they are in good condition? TIA Lisa Brinkman