I started collecting Bulb books before I had anywhere to grow them. I picked up a copy of Brian Mathew's "Crocus" about ten years ago and now I see it can sell for upwards of $100.00. I have Collins Guide and James Wells "Modern Miniature Daffodils" Which I use very often. Although I understand from some very well appointed daffodil experts that there are errors in Well's book. I find that catalogs are a wonderful source of information and try to keep a supply of them around, especially from the small specialty bulb growers. John Bryan's book is a must have for the vast amount of information that is in one place. The images are an extra added bonus. Although I find that in some cases printed images are often not a true representation of true flower color. ( A flower by any other color...) But, the Phillips & Rix book "Bulbs" with a good blend of scientific and in habitat images is the most worn book in the house. Arnold