XO, Ox

Name: XO, Ox
Author: Adam Rex
ISBN: 9781626722880

Age Rating, Reading Level & Content Guide

A Love Story

by Adam Rex

Illustrated by Scott Campbell

Reading Level 3-4 C · Gentle Ages 5-8 Balanced Read

The text is written at a 3rd grade reading level, the subject matter is intended for younger children (ages 5–8), and the content is gentle with no concerning themes. Its HootRating code, C, means gentle content.

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About This Book

Love letters have never been this funny! An ox falls head over hooves for a gazelle, and their wild, wacky letters will have you roaring with laughter. This story shows why even the biggest differences can’t stop true feelings.

Themes

Humor FriendshipLoveAnimalsLetters

Quick Assessment

XO, Ox is a humorous fictional story told through letters between an ox and a gazelle, exploring themes of love and friendship with playful language suitable for early readers aged 5 to 8. The book's lighthearted approach to differences and affection encourages empathy and reading engagement without any intense content.

Why we rated XO, Ox C (Gentle)

XO, Ox is written at a Level 3-4 reading level across 38 pages. Reading-wise, most kids in grade 5 and up can manage XO, Ox on their own; younger readers can enjoy it with a parent or teacher reading along.

We rate XO, Ox as C (Gentle) because the content sits in the "Gentle" range — no conflict beyond everyday childhood experiences. Across our four dimensions (emotional, physical, social, thematic) the book reads as evenly gentle; no single dimension stands out as a concern.

No specific content flags were raised by community reviewers, which is consistent with the gentle intensity score.

Thematically, XO, Ox explores humor, friendship, love, animals, and letters — these threads give the book room to mean different things to different readers.

Good fit for

✓ Children in the Ages 5-8 range — the maturity and attention span match the story's pacing.
✓ Kids drawn to stories about humor, friendship, love.

Maybe not for

! Readers looking for something heavier — this is a gentle, low-stakes story by design.

For Parents

Content Intensity

C · Gentle

Emotional

Gentle

Physical

Gentle

Social

Gentle

Thematic

Gentle

Reading the HootRating code: the first letter is the content intensity (C = Gentle · L = Mild · M = Moderate · I = Intense · V = Very Intense); the second, when there is one, is the kind of content that drives it (E = Emotional · P = Physical · S = Social · T = Thematic). Reading level and age range are rated separately. How we rate

No conflict beyond everyday childhood experiences. Safe for sensitive readers.

Data confidence: high

Was our "Gentle" content intensity rating accurate for this book?