All of Cleary's children's books have been published by Lerner Publishing Group and are written for grades K-6.
"Words are CATegorical" Series
Cleary's best-selling "Words are CATegorical" series include 17 titles, published from 1999 to 2010.
- Dearly, Nearly, Insincerely: What Is an Adverb?
- Hairy, Scary, Ordinary: What Is an Adjective?
- How Much Can a Bare Bear Bear?: What Are Homonyms and Homophones?
- I and You and Don’t Forget Who: What Is a Pronoun?
- A Lime, a Mime, a Pool of Slime: More about Nouns
- Lazily, Crazily, Just a Bit Nasally: More about Adverbs
- A Mink, a Fink, a Skating Rink: What Is a Noun?
- Pitch and Throw, Grasp and Know: What Is a Synonym?
- Quirky, Jerky, Extra Perky: More about Adjectives
- Slide and Slurp, Scratch and Burp: More about Verbs
- Stop and Go, Yes and No: What Is an Antonym?
- To Root, to Toot, to Parachute: What Is a Verb?
- Under, Over, By the Clover: What Is a Preposition?
- Stroll and Walk, Babble and Talk: More about Synonyms
- Straight and Curvy, Meek and Nervy: More about Antonyms
- Skin Like Milk, Hair of Silk: What Are Similes and Metaphors?
- But and For, Yet and Nor : What Is a Conjunction?
"Sounds Like Reading" Series
An 8-book series written for 1st graders and "English as second language" students, published in 2009.
- The Bug in the Jug Wants a Hug
- Stop, Drop, and Flop in the Slop
- The Nice Mice in the Rice
- The Frail Snail on the Trail
- The Thing on the Wing Can Sing
- Whose Shoes Would You Choose?
- The Peaches on the Beaches
- The Clown in the Gown Drives the Car with the Star
"Math is CATegorical" Series
A 5-book series that introduces math concepts to 3rd graders.
- The Action of Subtraction
- The Mission of Addition
- How Long or How Wide? A Measuring Guide
- On the Scale, A Weighty Tale
- Windows, Rings, and Grapes; A Look at Different Shapes
Other Lerner Book Titles
- Eight Wild Nights: A Family Hanukkah Tale (Carolrhoda Picture Books series)
- Peanut Butter and Jellyfishes: A Very Silly Alphabet Book (Millbrook Picture Books series)
- "Mrs. Riley Bought Five Itchy Aardvarks" and Other Painless Tricks for Memorizing Science Facts (Adventures in Memory series)
- Rainbow Soup: Adventures in Poetry
- The Laugh Stand: Adventures in Humor
- Rhyme & PUNishment: Adventures in Wordplay
- The Punctuation Station
Books for Adults
- You Oughta Know by Now (Perseus 2010)