(US) Putnam's/Penguin : According to Humphrey Books

Humphrey Best Box Set
Best Gift Set Ever
Humphrey's Book of FUN-FUN-FUN
Humphrey's Book
Humphrey's World of Pets
World of Pets
All Humphrey books on audio
Humphrey books on audio!

New York Library Association Book of the Season
Bank Street Children's Book Committee Best Book of the Year
Book Sense Spring Children's Pick
Rhode Island Children's Book Award
Pennsylvania's Keystone to Reading Award
Maryland Black-Eyed Susan Book Award
Iowa Children's Choice Award
Washington State Sasquatch Award
Oklahoma Sequoyah Award
Nebraska Golden Sower Award
Christopher Award
Children's Crown Award, 2007, 2008, 2011

The first two books in the new U.S. series of shorter, illustrated Humphrey chapter books illustrated by Priscilla Burris.
Humphrey's Playful Puppy Problem
Humphrey's Playful Puppy Problem
Humphrey has loved helping Richie with his science project, but then Richie's new dog bounds in and ruins all their hard work! If only Humphrey can keep that playful puppy away, he has a GREAT-GREAT-GREAT idea to save the day, but will it work? He's in for a close call and another fur-raising adventure!
Humphrey's Adventures
Secrets According to Humphrey
Christmas According to Humphrey
Mysteries According to Humphrey
School According to Humphrey
Friendship According to Humphrey
Holidays According to Humphrey
More Adventures According to Humphrey
Trouble According to Humphrey
Surprises According To Humphrey
The World According to Humphrey
Collected Stories
Humphrey's Bumper Book of Tiny Tales 2

Bumper Book of Humphrey's Tiny Tales

Humphrey's Ho Ho Ho Book of Stories

Great-Great-Great Book of Stories

Big-Big-Big Book of Stories
Humphrey's Tiny Tales
My Really Wheely Racing Day
My Playful Puppy Problem
My Great Big Birthday Bash
My Treasure Hunt Trouble
My Creepy-Crawly Camping Adventure
My Pet Show Panic
My Summer Fair Surprise

Fun & Activities
Humphrey's Book of Summer Fun
Humphrey's Book of Christmas Fun
Humphrey's World of Pets
Humphrey's Ha-Ha-Ha Joke Book
Humphrey's Book of Fun-Fun-Fun
Audio Stories
The World According to Humphrey [CD]
Friendship According to Humphrey [CD]

U.K. Honors
The World According to Humphrey - a Richard and Judy Book
Adventure According to Humphrey - 2008 World Book Day Book
My Creepy Crawly Camping Adventure - a Richard and Judy Book
My Treasure Hunt Trouble - 2011 World Book Day Book