Form refers to what an object is whereas genre refers to what an object is about.
Definitions:
- "Zines" captures small-circulation, self-published works
- "Emergent Journals" captures self-published or professionally published works that may or may not have follow-up issues
- "Books" captures what you'd typically think of when you think of a book
- "Comics" captures graphic novels and comic strips in all forms
- "Books & Comics" also includes artists' books