Source: https://www.kidsbookseries.com/search?age=3&rl=3

Book series for 3-year-olds at reading level: 3rd grade (list current as of Dec 15, 2025)

  Arthur Adventures by Marc Brown (Age 3 - 8)
  Arthur Specials by Marc Brown, Peter Hirsch, Kathy Waugh (Age 3 - 8)
  Berenstain Bears Beginner Books by Stan Berenstain, Jan Berenstain (Age 3 - 9)
  Berenstain Bears First Time Books by Stan Berenstain, Jan Berenstain, Mike Berenstain (Age 3 - 8)
  Berenstain Bears First Time Readers by Stan Berenstain, Jan Berenstain (Age 3 - 8)
  Berenstain Bears Happy House Books by Stan Berenstain, Jan Berenstain (Age 3 - 8)
  Brian Floca's Picture Books of Vehicles by Brian Floca (Age 2 - 10)
  Curious George Board Books by H. A. Rey, Margret Rey (Age 1 - 5)
  Curious George New Adventures by Margret Rey, Alan J. Shalleck, H. A. Rey, et al. (Age 3 - 8)
  Curious George Original Adventures by H. A. Rey, Margret Rey (Age 3 - 8)
  Dora the Explorer by Sarah Willson, Leslie Valdes, Alison Inches, et al. (Age 3 - 6)
  Dr. Seuss Beginner Books by Dr. Seuss (Age 3 - 8)
  Dr. Seuss Board Books by Dr. Seuss, Dr. Seuss (Age 0 - 5)
  Dr. Seuss Classics and More by Dr. Seuss, Tish Rabe, Jack Prelutsky (Age 3 and up)
  Goodnight, Goodnight Construction Site by Sherri Duskey Rinker (Age 2 - 6)
  Harry the Dirty Dog by Gene Zion (Age 2 - 8)
  If You Give a Mouse by Laura Numeroff (Age 3 - 8)
  Jellybeans by Laura Joffe Numeroff, Nate Evans (Age 3 - 8)
  Knuffle Bunny by Mo Willems (Age 3 - 8)
  Little Whistle by Cynthia Rylant (Age 3 - 7)
  Madeline by Ludwig Bemelmans, John Bemelmans Marciano (Age 3 - 8)
  My First Little House Picture Books by Laura Ingalls Wilder (Age 3 - 8)
  Pete the Cat 8x8 Picture Books by James Dean, Kimberly Dean (Age 3 - 8)
  Pinkalicious 8x8 Picture Books by Victoria Kann (Age 3 - 7)
  Russell the Sheep by Rob Scotton (Age 3 - 7)
  Splat the Cat by Rob Scotton (Age 3 - 8)
  What People Do Best by Laura Numeroff (Age 3 - 7)

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.


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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