I, Cosmo

A golden retriever narrates a hilarious, heart-tugging tale of a dog and his humans as he tries to keep his family together while everything around them falls apart.

Ever since Cosmo became a big brother to Max twelve years ago, he’s known what his job was: to protect his boy and make him happy. Through many good years marked by tennis balls and pilfered turkey, torn-up toilet paper and fragrant goose poop, Cosmo has doggedly kept his vow. Until recently, his biggest problems were the evil tutu-wearing sheepdog he met on Halloween and the arthritis in his own joints. But now, with Dad-scented blankets appearing on the couch and arguing voices getting louder, Cosmo senses a tougher challenge ahead.

When Max gets a crazy idea to teach them both a dance routine for a contest, how can Cosmo refuse, stiff hips or no? Max wants to remind his folks of all the great times they’ve had together dancing — and make them forget about the “d” word that’s making them all cry. Told in the open, optimistic, unintentionally humorous voice of a golden retriever, I, Cosmo will grab readers from the first page — and remind them that love and loyalty transcend whatever life throws your way.


“Like any good dog, Cosmo is so funny, friendly, and loyal that he quickly became a dear friend, so much so that when I finished reading the book, I missed hearing his voice and picturing his shaggy face. Come back, Cosmo!”

Jim Gorant, author of the New York Times bestseller The Lost Dogs

A Waterstones Paperback of the Year 2019

The Irish Independent’s No. 1 Book of the Year (9-12 Category)

Nominated for the 2020-2021 Maine Student Book Award

Nominated for the Young Hoosier Book Award

A Bank Street Best Book of the Year

A Kirkus Best Middle Grade Book of 2019

An Amazon Editors’ Pick for December 2019

A Junior Library Guild Selection

Waterstones Children’s Book of the Month, September 2019

A New Zealand Listener Best Book of 2019

A BookTrust “Books We Love” Selection for August 2019

The Dubray 8+ Favorite for August 2019

“Cosmo’s narration combines wit, heart, stubbornness, and a grouchy dignity, all ably tugging at funny bones and heartstrings alike. Sorosiak’s author’s note is a joyful celebration of dogs’ hidden humanity, one that’s reflected in her joyfully and painfully realistic tale of a struggling family and doggedly persistent canine companion.”Kirkus (starred review)

“Sorosiak offers Cosmo a combination of wisdom and innocence that feel truly dog-like as his warm voice conveys Max and Cosmo’s mutual affection—the steady and heartwarming constant in both their lives. Touching, bittersweet, and true, this book will appeal to anyone who has loved a pet.”School Library Journal (starred review)

“With Cosmo serving as a humorous and lovable narrator, I, Cosmo’s sensitive handling of divorce in a biracial family will appeal to readers who enjoy realistic fiction and, of course, anyone who loves stories about very good dogs.”BookPage (starred review)

“A thirteen year-old Golden Retriever with a taste for adventure (and bacon) Cosmo is a canine on a mission. He’s got to stop a break-up, protect his best friend Max, and bring everyone together again for one show-stopping, marriage-saving, dog-dancing finale. But when it comes to fixing families, it turns out life is more complicated than just learning the right steps. Stories as genuinely joyful as I, Cosmo don’t come along very often and our booksellers were instantly charmed by Carlie Sorosiak’s witty, moving tale of friendship and a family in crisis. A novel full of heart that has all the hallmarks of a modern classic.”—Waterstones

“Dog lovers will adore I, Cosmo. Heartwarming.”—Daily Express 

“By turns moving and hilarious . . . I adored this, a genuine feel-good delight with the most lovable animal narrator I’ve read in ages.”—Fiona Noble, editor’s choice in The Bookseller (UK)

“An adorable story about love and loyalty and how they can sustain us during tough times, written with real heart.”—Sarah Webb, The Independent (Ireland)

“This gem has all the warmth and heart of Homeward Bound.”—Catherine Doyle, award-winning author of The Storm Keeper’s Island

“This charming, original story brings together the fun of canine freestyle dance and the heartbreak of divorce into a single, moving story about families, and what happens when no amount of effort and love is enough to keep them together. Fans of heartwarming doggy stories . . . will love this book.”BookTrust 

“This tender middle-grade tale about the love between a human and a dog will touch the heart of animal-lovers everywhere. A must-read for dog fans.”Booklist

“A moving story told through the eyes of the family dog as he witnesses a break-up and provides the best sort of comfort to young Max.”—National Literacy Trust (UK)

“This is a must read story – something really different and special. Get the tissues ready!”—North Somerset Teachers’ Book Award (blog)

I, Cosmo is a joyful exploration of the inner world of dogs, a celebration of the relationship between a little boy and his best friend, and a kindly story about how families can confront and manage difficulties and move forward despite them. I loved it.”—Jill Murphy, TheBookbag.co.uk

“A moving story about a family that is falling apart, and Cosmo, who must try to keep them together . . . I adored this!”—Lisa Corr, Dubray Grafton St. 

“Wise, funny and moving, this is an animal story with a difference (and a wonderfully unique hero).”—Scott Evans, “Best children’s books for animal lovers,” TheSchoolRun.com

“A masterpiece.”—Samuel Pollen, acclaimed author of The Year I Didn’t Eat

“This is a (very lightly) philosophical book about loyalty, love and living in the moment.”i News

“A very special and surprising book. It’s beautifully written, at one moment laugh out loud funny, the next, deeply moving, and there is something very comforting and healing about it . . . Cosmo is drawn so true to life that he works his magic from the pages.”—Perdita Cargill, co-author of Waiting for Callback

“Carlie Sorosiak’s striking middle grade debut is a love letter to dogs everywhere. Readers will cheer for Cosmo and Max with all their hearts. I, Cosmo soars!”—Ali Standish, award-winning author of August Isle

“So much heart and humor and love. Made my tail wag and my heart soar.”—Ross Montgomery, award-winning author of Max and the Millions 

“I was laughing from the first page . . . and by the end was in tears because Cosmo and his family had captured my heart.”—Katherine Webber, acclaimed author of Sam Wu is Not Afraid

“Cosmo is a very silly dog that likes any type of meat and will do anything to keep his family together, like sacrificing his time on walks to try and win a movie role in a dance competition. I would recommend this book to people who like meaningful stories with a little bit of funny and little bit of sad.”—Micah Baron, 7th grader, Atlanta, GA