I do read a lot of paper books and I do have a workflow that’s close to perfect—for my needs, of course. At least it’s so much better than writing all down in paper notebooks.
A crucial part in my opinion is the “identifier” for the books quoted. Of course you could write down the complete title for every excerpt, but that would be tedious. And there are apps for that: reference/bibliography managers. Mine is Bookends. I have tested others but found it to be the best on the Apple side of the universe (again: for my needs).
For a while now I have been scanning the barcode of every new book I have purchased with Bookends To Go on my iPhone. I need to give the fetched data a bit of make-over, but all in all it works really well. It’s fast and it syncs between mobile devices and my Mac.
When I quote from one of the books in Bookends I do not copy a full citation but a temporary one, e. g. {Smith and Duff, 2021 #167340}. In a text for an editor or such Bookends will replace it by the full citation in the requested format (Harvard, Oxford, etc.).
First I used the citations only with my clipboard manager Paste. Besides the normal clipboard history it has pinboards which permanently keep content and can be dedicated to whatever you need them for, like code snippets, or Bookends temporary citations. Again, it syncs over all my devices, and on iOS/iPadOS it has a keyboard for the clipboard and the pinboards.
But I was even too lazy for that. Along came Drafts, my note taking app on all devices, including the Apple Watch. Drafts works with user programmable actions. I can launch my Reference action right from the log screen. An earlier versions held a list of books but since I prefer serial reading I switched to an action with just the one book I’m presently reading (it saves me picking from the list when there is no list).
The workflow is super simple and super fast: When launched a menu pops up with the focus in the field for the page number and then I can chose wether I want to dictate (my usual choice for short quotes), or to scan (for longer quotes), or to write, or to use the content of the clipboard. The action creates a Markdown note with the quote and adds a footnote like [^ref]: {Smith and Duff, 2021 #167340@27}
to it. And it adds the tag “excerpt”.
Later I will send all excerpts and other notes with another action into DEVONthink’s Global Inbox. A Smart Rule will remove the “excerpt” tag and set the label “excerpt” instead (because I use tags for the content and not for the type of items). When I find the time I will expand the Smart Rule to detect the content of the ‘ref’ footnote and copy its content into the “source” custom metadata field.
Why a footnote, you might ask, since (Multi)Markdown notes allow metadata fields like “source”. While I am still undecided if I should have the Drafts action (or the DEVONthink Smart Rule) add the reference to the note metadata too, there is a good reason for the footnote: When I import the Markdown notes into my (rich text) writing program Scrivener the footnotes stay footnotes that hold the references. Later on Bookends will replace the temporary citations in Scrivener’s compiled output.
… Well, you asked.