I have Ace Doubles I wish to enter but I am puzzled that it appears each half is being indexed separately. Omnibuses aren't indexed with each story separately so I'm curious why this is the case with Ace Doubles, which are technically omnibuses.
I'm still waiting for an answer on this. A bunch more Ace Doubles have apparently been indexed separately. I intend to index mine as single books, unless a moderator indicates that there's a rule. Otherwise, I recently indexed the omnibus "The Saint: Five Complete Novels" which I suppose should have been indexed 5 times, one per novel? See where it doesn't make sense?
I know of no specific rule. I entered this Ace double as a single book three years ago, but haven't entered any others since. I'm not sure if I would do it that way again, since I'm not totally happy with it. But I haven't changed it yet either. Like entering box sets, a lot of choices are left up to the person doing the entering.
I'm curious about this as well. I think Jim's example works because the same author wrote both sides of the double. Having said that, I'm leaning toward entering each side as a unique book and adding a link in the Notes (not the Comments) section of each entry.
@mikey50 The problem with doing that is it breaks the system because this index is supposed to be for book releases, and if we enter each half of an Ace Double as a single book, then it becomes difficult to search for specific book releases and using my analogy, any example of an omnibus would need to be broken up too (I mention The Saint above, but I can also include things like The Illuminatus Trilogy by Shea and Wilson which is more widely known today as an omnibus than as 3 separate books, or collections of things like Asimov's Foundation trilogy, Adams' Hitchhiker's Guide, Peake's Gormenghast, and it gets really messy when you start splitting up things like Zelazny's Big Book of Amber. Not to mention The Lord of the Rings.