What reading level is the First Reports series?

First Reports books are at a grades 3–5 reading level (average grade level 4.5), and HootRated recommends the series for ages 8–10. There are 7 books in the series.

What order should I read the First Reports books?

Series numbers aren't available for most First Reports books, so HootRated lists them by publication date: Coral Reefs (First Reports) (2000); Deserts (First Reports) (2000); Grasslands (First Reports) (2000); Russia (2002); Eagles (First Reports) (2003); and 2 more.

First Reports Books in Order

First Reports is a 7-book series by Susan Heinrichs Gray for ages 8–10, at a grades 3–5 reading level, with gentle content (HootRated intensity 1/5).

Books: 7; By publication date
Reading level: Grades 3–5; Average grade level 4.5
Recommended ages: Ages 8–10; From HootRated age ratings
Content intensity: Gentle; HootRated 1/5

First Reports Reading Order

Series numbers aren't available for most First Reports books, so they're listed by publication date (oldest first).

#	Title	Reading Level	Ages	Content
1	Coral Reefs (First Reports) 2000 · Susan H. Gray	Level 4-5	9+	Gentle
2	Deserts (First Reports) 2000	Level 4-5	9+	Gentle
3	Grasslands (First Reports) 2000	Level 4-5	9+	Gentle
4	Russia 2002	Level 3-4	8+	Gentle
5	Eagles (First Reports) 2003 · Mary K. Dornhoffer	Level 4-5	9+	Gentle
6	Jellyfish (First Reports) 2003 · Mary K. Dornhoffer	Level 5-6	10+	Gentle
7	Wolves (First Reports) 2003 · Mary K. Dornhoffer	Level 4-5	9+	Gentle

Content Intensity Across the Series

Consistent

Content stays at a steady intensity level throughout the series.

First book Latest book

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. First Reports (7 books by Susan Heinrichs Gray) lands at a grades 3–5 reading level, with average content intensity 1/5. Intensity stays consistent across the series, so a reader who can handle the first book can generally handle the rest.

The reading-order table above lists every book with per-volume reading level, age and intensity ratings 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.

All First Reports Books

Coral Reefs (First Reports)

Susan H. Gray

Coral Reefs (First Reports)

Susan H. Gray

Level 4-5 Gentle

Deserts (First Reports)

Susan Heinrichs Gray

Deserts (First Reports)

Susan Heinrichs Gray

Level 4-5 Gentle

Grasslands (First Reports)

Susan Heinrichs Gray

Grasslands (First Reports)

Susan Heinrichs Gray

Level 4-5 Gentle

Russia

Susan Heinrichs Gray

Russia

Susan Heinrichs Gray

Level 3-4 Gentle

Eagles (First Reports)

Mary K. Dornhoffer

Eagles (First Reports)

Mary K. Dornhoffer

Level 4-5 Gentle

Jellyfish (First Reports)

Mary K. Dornhoffer

Jellyfish (First Reports)

Mary K. Dornhoffer

Level 5-6 Gentle

Wolves (First Reports)

Mary K. Dornhoffer

Wolves (First Reports)

Mary K. Dornhoffer

Level 4-5 Gentle

Series Like First Reports: What to Read Next

Similar reading level, content intensity and themes.

Questions about the First Reports series

What reading level is the First Reports series?: First Reports books are at a grades 3–5 reading level (average grade level 4.5), and HootRated recommends the series for ages 8–10. There are 7 books in the series.
What order should I read the First Reports books?: Series numbers aren't available for most First Reports books, so HootRated lists them by publication date: Coral Reefs (First Reports) (2000); Deserts (First Reports) (2000); Grasslands (First Reports) (2000); Russia (2002); Eagles (First Reports) (2003); and 2 more.
What age is the First Reports series appropriate for?: HootRated recommends First Reports for ages 8–10. Content is gentle (HootRated intensity 1/5). Intensity stays consistent across the series, so a reader who can handle the first book can generally handle the rest.