template https://openlibrary.org User-Agent: Verb/Emacs Emacs/{{emacs-version}} Accept: application/json
template /search.json
get ?title={{(verb-var title)}}
get ?author={{(verb-var author “Frank Herbert”)}}
get /subjects/{{(verb-var subject)}}.json
get /api/books?bibkeys=ISBN:{{(verb-var isbn)}}&format=json
get {{(verb-json-get (oref (verb-stored-response “book”) body) (concat “ISBN:” (verb-var isbn)) “thumbnail_url”)}} Accept: image/jpeg