What reading level is the Bone series?

The Bone series by Jeff Smith is at a Grades 2.5–4.5 reading level (average Grade 4.3). Intended for Middle Grades (Ages 9–12). There are 10 books in the series.

What order should I read the Bone books?

The Bone series has 10 books in order: 1. Bone: Out from Boneville, 2. Bone: The Great Cow Race, 3. Bone, 4. Bone: The Dragonslayer, 5. Bone: Rock Jaw Master of the Eastern Border, and 5 more.

What age is the Bone series appropriate for?

The Bone series is recommended for Middle Grades (Ages 9–12). The average content intensity is 2.4/5.

Bone Books in Order

10 books by Jeff Smith. Reading level: Grades 2.5–4.5. Middle Grades (Ages 9–12).

Series books grow with readers — but that's also the trap. Most series start at one reading level and one content intensity and drift upward over the course of the run. Bone (10 books by Jeff Smith) lands at reading level Grades 2.5–4.5, with average content intensity 2.4/5.

The reading-order table below lists every book with per-volume reading level and intensity badges so you can spot any escalation before it catches your reader off guard. For a deeper dive into how we score text difficulty vs. emotional weight separately — and why series readers especially benefit from that split — see our methodology page.

Books

Grades 2.5–4.5

Reading Level

2.4/5

Avg. Intensity

Middle Grades

Content Intensity Across the Series

Varies

Content intensity ranges from Gentle to Moderate across the series.

First book Latest book

Bone Reading Order

#	Title	Reading Level	Content
Book 1	Bone: Out from Boneville Jeff Smith	Level 4-5	Moderate
Book 2	Bone: The Great Cow Race Jeff Smith	Level 4-5	Mild
Book 3	Bone Jeff Smith	Level 4-5	Mild
Book 4	Bone: The Dragonslayer Jeff Smith	Level 4-5	Moderate
Book 5	Bone: Rock Jaw Master of the Eastern Border Jeff Smith	Level 4-5	Mild
Book 6	Bone: Old Man's Cave Jeff Smith	Level 4-5	Moderate
Book 7	Bone: Ghost Circles Jeff Smith	Level 4-5	Moderate
Book 8	Bone: Treasure Hunters Jeff Smith	Level 4-5	Mild
Book 9	Bone: Crown of Horns Jeff Smith	Level 4-5	Moderate
—	More Tall Tales Jeff Smith	Level 2-3	Gentle

Level 2-3

Questions about the Bone series

What reading level is the Bone series?: The Bone series by Jeff Smith is at a Grades 2.5–4.5 reading level (average Grade 4.3). Intended for Middle Grades (Ages 9–12). There are 10 books in the series.
What order should I read the Bone books?: The reading-order table above lists all 10 books with per-volume reading level and intensity ratings. Start with book 1 and read in publication order unless the table indicates a different recommended order for newer readers.
What age is the Bone series appropriate for?: The Bone series is recommended for Middle Grades (Ages 9–12). The average content intensity is 2.4/5. Check the intensity trajectory above to see whether content gets heavier across the series — if it does, sensitive readers may want to stop earlier in the run.