Source: https://www.kidsbookseries.com/search?age=1&rl=1

Book series for 1-year-olds at reading level: 1st grade (list current as of Dec 15, 2025)

  Berenstain Bears Bright and Early Board Books by Stan Berenstain, Jan Berenstain (Age 1 - 3)
  Berenstain Bears First First Time Books by Stan Berenstain, Jan Berenstain (Age 1 - 4)
  D.W. Board Books by Marc Brown (Age 1 - 4)
  Dr. Seuss Beginning Beginners by Dr. Seuss (Age 1 - 5)
  Dr. Seuss Board Books by Dr. Seuss, Dr. Seuss (Age 0 - 5)
  I'm Not Afraid Board Books by Dandi Daley Mackall (Age 1 - 5)
  Pigeon Board Books by Mo Willems (Age 1 - 4)
  Russell the Sheep Board Books by Rob Scotton (Age 1 - 5)

Please note that reading level search results reflect our best estimate of the reading level range for each series based on the information we have available. To check or confirm the actual reading level for a specific book, specific book within a series as measured by one of the companies that perform these assessments, please go to the respective company's website as explained here: https://www.kidsbookseries.com/help/readinglevels.php.

We are in the process of adding more series to our database. Please check back again soon when we may have more series on this list for you.

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Key for icons:
   = award winner or finalist
   = best-seller list
   = adapted into film or musical
   = adapted from television series
   = adapted into television series

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