I like my anthologies and author collections to have some sort of unifying theme. I am not a fan of anthologies just thrown together. If an author has written across several genre or several types of stories, I like the parts to fit together. There is one exception to that, the introductory collection if an author wrote across many genres. The Book of Robert E. Howard and The Collected Stories of Max Brand are two examples.
I recently wrote about DMR Books publishing the Poul Anderson collection Swordsmen from the Stars. For years, I used to play around on hypothetical Poul Anderson collections. There are some stories by Anderson from the 1950s never reprinted in a collection. Some are in Best of Fantasy & Science Fiction and Galaxy anthologies.
There are some Poul Anderson anthologies that just make no sense. Homeward and Beyond comes to mind. It is a great little collection but all over the place in terms of content, mostly stories from the 1970s. Alight in the Void (Tor Books, 1991) was edited by Bob Weinberg. It consists of stories from Popular Publications pulps, mainly Super Science Stories. That is a great collection of golden age space opera.
Here is a list of Poul Anderson stories that are sword-and-science, heroic fantasy, and historical:
Witch of the Demon Seas Planet Stories January 1951
The Virgin of Valkarion Planet Stories July 1951
Swordsman of Lost Terra Planet Stories November 1951
Goodbye, Atlantis! Fantastic Stories August 1961
Son of the Sword Adventure January 1952
The Trader and the Vikings Jack London’s Adventure Magazine October 1958
The Valor of Cappen Varra Fantastic Universe January 1957
The Gate of the Flying Knives Thieves World 1979
Lady of the Winds F&SF Oct. 2001
The Peat Bog Homeward & Beyond 1975
The Tale of Hauk Swords Against Darkness 1977
The Bog Sword The First Heroes 2004
Anderson contributed stories set in other author’s words:
Strength Magic May Return 1981
The Newcomers The Enchanter Completed 2005
Then there are some fantasy pieces on the obscure side. I have not read these but have the feeling they are in the mode of Unknown:
Ashtaru the Terrible Fantasy Magazine March 1953
Rachaella Fantasy Magazine June 1953
Three Wishes Fantastic Stories March-April 1953
Mr. Tiglath Tales of the Frightened August 1957
I will leave it at here for today and pick up next week on how I would organize these.