Children's book age range and US grade range are optional fields you can choose to make it easier for readers to find your books. The Amazon.com and Amazon.co.uk Children's Kindle Stores and the Amazon.com Schools and Teaching Store filter books by age and grade range, respectively, so adding this information makes your book easier for those stores to sort.

• Choosing an age range will improve the discoverability of books in the Juvenile book categories on Amazon.com and Amazon.co.uk.
• Choosing a grade range will improve the discoverability of books in the Juvenile and Education book categories on Amazon.com. The grades are based on U.S. grade levels.

Best Practice Tips: Narrow age ranges work best. Limit your age ranges and grade levels to a span of 3-4 years to make sure the most appropriate customers see your books. Here are the target age ranges and grade levels for books on Amazon.com:

Age / Grade Level	Suitable books (recommended)
Age 0-2 / N/A	Board books
Age 3-5 / Preschool	Picture books
Age 6-8 / Kindergarten - 2nd grade	Early-level readers, first chapter books
Age 9-12 / 3rd - 6th grade	Middle-grade chapter books
Age 13-18 / 7th - 12th grade	Teen and young adult chapter books