Taken from SCBWI publishing standards:
- Board Books (1 or under manuscript pages) for 3 year olds and under
- Picture Books (2 to 3 manuscript pages) for ages 3 to 8
- Easy-to-Read (10-20 manuscript pages) for ages 5 to 8
- Chapter Books (40-60 manuscript pages) for ages 7-9
- Middle Grade (100-250 manuscript pages) for ages 8-12
- Young Adult (200-350 manuscript pages) for ages 12 and up
- Nonfiction (manuscript pages varies by age group)
- Poetry for younger readers (15 to 40 manuscript pages) with only one poem per page
- Poetry for older readers (50 to 150 manuscript pages) with one poem per page.
—-typical genres, manuscript reference