The authors share their vast knowledge and experience in the world of daffodils in a crisp, clear prose, supported by hundreds of full-color illustrations as well as instructive drawings.
Daffodils for American Gardens by Brent Heath, Becky Heath (first ed.)(Elliot Pub 1995). This is the first edition of this book; I had previously read the 2001 edition and then purchased this older edition on Amazon for a penny. It's still excellent! My rating: 7.5/10, finished 6/14/12.