Brian P. Cleary 
But and For, Yet and Nor [PDF ebook] 
What Is a Conjunction?

What is a conjunction? You’ll find the answer inside this book-because it’s chock-full of conjunctions! Brian P. Cleary’s playful yet informative rhymes and Brian Gable’s humorous but helpful illustrations creatively clarify the concept of conjunctions for young readers. Key conjunctions appear in color for easy identification, and comical cats reinforce each idea. While you read this book aloud, share in the delight of the sense-and nonsense-of words.