awdr:
  author_id: 1
  id: 1
  name: "Agile Web Development with Rails"
  format: "paperback"
  status: :published
  last_read: :read
  language: :english
  author_visibility: :visible
  illustrator_visibility: :visible
  font_size: :medium
  difficulty: :medium
  boolean_status: :enabled
  isbn: "A"

rfr:
  author_id: 1
  id: 2
  name: "Ruby for Rails"
  format: "ebook"
  status: "proposed"
  last_read: "reading"
  isbn: "B"

ddd:
  author_id: 1
  id: 3
  name: "Domain-Driven Design"
  format: "hardcover"
  status: 2
  last_read: "forgotten"
  isbn: "C"

tlg:
  author_id: 1
  id: 4
  name: "Thoughtleadering"
  isbn: "D"