25 books in series

Words are CATegorical

Words are CATegorical is a 25-book series with 25 primary works first released in 1999 with contributions by Brian P. Cleary.

Dearly, Nearly, Insincerely: What Is an Adverb?
I and You and Don't Forget Who: What Is a Pronoun?
Stroll and Walk, Babble and Talk: More about Synonyms
To Root, to Toot, to Parachute: What Is a Verb?
Quirky, Jerky, Extra Perky: More about Adjectives
Hairy, Scary, Ordinary: What Is an Adjective?
A Lime, a Mime, a Pool of Slime: More about Nouns
A Mink, a Fink, a Skating Rink: What Is a Noun?
Stop and Go, Yes and No: What Is an Antonym?
But and For, Yet and Nor: What Is a Conjunction?
-Ful and -Less, -Er and -Ness: What Is a Suffix?
Breezier, Cheesier, Newest, and Bluest: What Are Comparatives and Superlatives?
Madam and Nun and 1001: What Is a Palindrome?
Cover 6

Thumbtacks, Earwax, Lipstick, Dipstick

Cover 5

Feet and Puppies, Thieves and Guppies

Cool! Whoa! Ah and Oh!: What Is an Interjection?
Under, Over, by the Clover: What Is a Preposition?
Slide and Slurp, Scratch and Burp: More about Verbs
Straight and Curvy, Meek and Nervy: More about Antonyms
Cover 3

Skin Like Milk, Hair of Silk

How Much Can a Bare Bear Bear?: What Are Homonyms and Homophones?
Pitch and Throw, Grasp and Know: What Is a Synonym?
I'm and Won't, They're and Don't: What's a Contraction? (Words are Categorical)
Cover 5

To Root, to Toot, Parachute

Lazily, crazily, just a bit nasally