Dave Holderread, Storey's Guide to Raising Ducks - As a beginner duck owner, I learned a bunch from this book. Especially, it helped me much when my duck began to incubate her eggs in my living room.
I didn't even know how to candle the eggs, and how to handle the eggs. Since we don't have many books written on ducks here in Japan, I wish to translate this book into Japanese!