A few years ago I scanned all of Dave Sim's notebooks. He had filled 36 notebooks during the years he created the monthly Cerebus series, covering issues #20 to 300, plus the other side items -- like the Epic stories, posters and prints, convention speeches etc. A total of 3,281 notebook pages detailing his creative process. I never really got the time to study the notebooks when I had them. Just did a quick look, scanned them in and sent them back to Dave as soon as possible. So this regular column is a chance for me to look through those scans and highlight some of the more interesting pages.
There are a bunch of Cerebus short stories that don't appear in the phonebooks, but are still considered canon. Many of them were reprinted in Cerebus: World Tour Book 1995 (and later reprinted in Cerebus: Not The World Tour Book 1995, same book, just a reprint with the text 'Not The' stamped on the cover in red). It seems that Dave was thinking about reprinting these stories as early as 1987.
In notebook #8, which covers issues 96 to 102, we see a thumbnail for Assorted Cerebus #1 with a listing of what would be in it.
Notebook #8, page 89
The only story from the Swords collections left out is "What Happened Between Issues Twenty & Twenty-One".