Visitations collects short fiction by Dann from the 1970s through the early 21st century. Only a minority of the stories are patently science fiction, though nearly all have some preternatural or at least "speculative" elements. Most don't have a denouement, and a few seem to be missing even a climax, although all have some sort of plot. A few of the stories written earlier share an emphasis on the Jewish perspective of the protagonist: in worlds however strangely transformed, the tenacity of Jewish culture is a given. A couple of the stories written later feature Giovanni Pico della Mirandola as a character, in the magick setting of his own Renaissance Italy. (These appear to have been byproducts of Dann's 1996 novel The Memory Cathedral.)

I started reading this book while in bed with a cold, and the fact (reflected in the title) that most of the stories involve visionary states and distortions of memory and consciousness has had the unobjectionable effect of casting the flavor of a fever dream over the whole thing.