The physicality of the boy's connection with his dog is the story in this book, part of the Ready-to-Read Puppy Mudge series for brand new readers. Henry wants to read, but Mudge wants to play. Mudge slobbers on Henry's book, tries to snuggle up, pulls off Henry's sock, and more, until, finally, Henry joins Mudge, and they play joyfully together. Rylant's simply language and Stevenson's active, unaffected pictures show and tell Henry's delight in both his book and his pesky, beloved pet. Every child will want such a wonderful nuisance.

This book lacks the liveliness and imagination of the original Henry and Mudge easy readers. Geared to a younger audience, the book features very simple, repetitive texts ("This is Henry's puppy, Mudge. Mudge wants to play. / Henry is reading. Henry does not want to play"). Clear, humorous illustrations provide some clues for new readers.