OWLS

• Charms:
  • Book about a discipline, object, structure, or substance (history or how-to) The Actor's Life: A Survival Guide Jenna Fischer
• History of Magic:
  • Broad history book (world history, a specific period spanning longer than a decade, or country, general or reinterpreted) Historia Mínima de Argentina Pablo Yankelevich
• Muggle Studies:
  • Sociology or anthropology book, or a history or politics book dealing with broad topics within the last 30 years So You've Been Publicly Shamed Jon Ronson

NEWTS

• Charms:
  • A: Non-fiction book about anthropomorphic mythological creature
• History of Magic:
  • A: Literary, art, or science history (cannot be biography or memoir)
  • E: Political memoir or biography (single-subject or group)
• Muggle Studies:
  • A: Political non-fiction of any kind (history, memoir, essays, etc)