Ah, my favorite discussion: Calibre.
I agonized since roughly the early beginning of Calibre back when it first started just how I could most effectively use it, and only within the last year decided what I wanted. Okay, I'm slow... :P
I finally settled on a single
custom column: Notes
I set my viewed columns to these only to be seen because it's so super easy to hide any of the pre-made columns until I want to view them. This way I can already see buckets of information easily when/or if I need it.
Author(s): Set to-Last name, First Name (Middle). For other format's: Caper the Friendly Ghost, Comic Books ... Men's Adventure, Magazines..., Vamperilla, Comic Magazines; etc.
Series: Since it sorts and/or numbers the way I want it to-Sample: The Big Bear, aphabetizes on the'B'
Title: sorts the same as the series
Published: the earliest known printing. Besides I may fix something sometime so my changes no longer reflects the original download.
Tags: Informative (Brief samples: action, American Western, American B-Western, Better Little Books, comic books, comic magazines, fiction, fiction ePub's, fiction comic books, humorous, newspaper strips, paranormals, romance, vampires; etc.)
Notes:
my only custom column. (Sample: Chapters make non-indent, book bad-rebuild, find better copy or reformat by hand, cover,
whatever I need to say. Use only as needed. I can quickly alphabatize the list to find whatever I want to work on later by 'top-clicking' the top of that column.)
For a data sort, if ever needed:
I use
Tags heavily to sort or create temporary virtual library pages when I need more than authors, languages, formats, or whatever from the left side of the page menu.
I let Calibre
Date when the title is downloaded.
Language is always English, but I still add it to the mix, just in case it's needed in the future.
Rating: Cleared. That literally changes over time, so I don't use it but it's hidden if I ever want to use it.
Size: viewed only as needed.
ids: Again, Cleared. Since I may have made changes to formatting or the cover, it doesn't reflect the current title. If I want to order a different copy, I can find it online easily. :/
This is what works for me, so I'm 'happy'.
My method permits me to later divide my library easily into multiple libraries, simply select comic books in the Central Library, or Magazines, or fiction, nonfiction, childrens books, vintage, music disc's, movie disks.
I love this thing!