What reading level is John Muir?

John Muir by Kathryn Lasky is at a Level 6-7 reading level. Recommended for Lower Grades readers (Ages 5-8).

What age is John Muir appropriate for?

John Muir is recommended for Ages 5-8. HootRating: 11C (Clear).

What genre is John Muir?

John Muir is nonfiction — Juvenile Nonfiction.

Does John Muir have any content warnings?

John Muir has a HootRating of 11C (Clear). No specific content flags noted. On HootRated, every book is rated across four dimensions — emotional, physical, social, and thematic — to help parents make informed choices.

How many pages is John Muir?

John Muir by Kathryn Lasky is 56 pages (approximately 4,471 words).

Reviewed by HootRated editorial · Last updated May 18, 2026

John Muir

Kathryn Lasky

John Muir

Age Rating, Reading Level & Content Guide

America's First Environmentalist

by Kathryn Lasky

Reading Level 6-7 11C Ages 5-8 Sweet Spot

A Junior Library Guild selection

The text is written at a 6th grade reading level, the subject matter is intended for younger children (ages 5–8), and the content is gentle with no concerning themes.

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About This Book

Discover the adventurous journey of a young explorer who traveled from the wild moors of Scotland to the forests of America, learning about plants and animals along the way. After overcoming a temporary loss of sight, he set out on an inspiring walk that deepened his love for nature and helped protect beautiful places like Yosemite. His passion sparked a movement to conserve the natural world for everyone to enjoy.

Themes

BiographyNature & ScienceConservationAdventure Coming of Age

Quick Assessment

This is a Level 6-7 book with gentle content intensity. It's a Sweet Spot read — challenging text with gentle themes, ideal for advanced or 2e readers. No notable content concerns flagged. Written for readers ages 5-8.

Why we rated John Muir 11C

John Muir is written at a Level 6-7 reading level across 56 pages (approximately 4,471 words). Strong independent readers around grade 7.1 can typically handle this book on their own; with parent or teacher support, John Muir works for readers up to grade 8.1.

Read aloud, John Muir takes about 30 minutes, which fits within a single read-aloud session.

We rate John Muir as 11C ("Clear") 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, John Muir explores biography, nature & science, conservation, adventure, and coming of age — 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.
✓ Readers who like a steady plot with enough momentum to keep pages turning.
✓ Kids drawn to stories about biography, nature & science, conservation.
✓ Readers (and parents) who care about award-recognized writing — John Muir carries an award.
✓ Curious kids who prefer real-world topics over made-up stories.

Maybe not for

! Readers whose emotional readiness lags behind their decoding skills — this book's intensity outruns its reading level, a classic "gifted kid" mismatch.