It's a great loss to the hosta world. Many people were brought into hostas when Paul Aden published his hosta book. The incredible picture on the cover of a mature Great Expectations was amazing. I still consider it one of the better hosta books, especially for those new to hostas. I have quite a number of Aden introductions, and am always looking for more. Not only do they have unique characteristics, but they are all incredibly hardy and have good growth rates.