@zkrisher
I'm really new to composing alt-texts. I've tried lengthy, detailed descriptions but found my hard work truncated on some sites. Editing the work down was quite frustrating.
I admit that I'm pleased to learn brevity is best. I hadn't considered "the flow" for screen-reader users.
Most of my images are for my bookshop and can include an amount of detail virtually impossible to describe in but the most generic terms.
I now list each book shown with a modicum of detail regarding condition and enough info so that a screen-reader user might be able to track down the editions shown.
Is there a resource, perhaps the Library of Congress, where detailed descriptions are available for those who want them?