Philip Jose Farmer dies

One of my favorite old science fiction writers, Philip Jose Farmer, has died. I fell in love with his writing when I was a teenager and for awhile I collected everything by him that I could. I have given up most of those books by now, but I remained fond of him. Some of my favorites: the first two "Riverworld" books, the "World of Tiers" series, his novella "Riders of the Purple Wage," the collection "The Book of Philip Jose Farmer."