What reading level is the Horrible Harry series?

The Horrible Harry series by Suzy Kline is at a Grades 2.9–3.9 reading level (average Grade 3.4). Intended for Lower Grades (Ages 5–8). There are 18 books in the series.

What order should I read the Horrible Harry books?

The Horrible Harry series has 18 books in order: 1. Horrible Harry and the ant invasion, 2. Horrible Harry and the battle of the bugs, 3. Horrible Harry and the birthday girl, 4. Horrible Harry and the Christmas surprise, 5. Horrible Harry and the dragon war, and 13 more.

What age is the Horrible Harry series appropriate for?

The Horrible Harry series is recommended for Lower Grades (Ages 5–8). The average content intensity is 1.1/5.

Horrible Harry Books in Order

18 books by Suzy Kline. Reading level: Grades 2.9–3.9. Lower Grades (Ages 5–8).

Content Intensity Across the Series

Consistent

Content stays at a steady intensity level throughout the series.

1

5

10

15

18

First book Latest book

Horrible Harry Reading Order

#	Title	Reading Level	Content
1	Horrible Harry and the ant invasion Suzy Kline	Level 3-4	Gentle
2	Horrible Harry and the battle of the bugs Suzy Kline	Level 3-4	Gentle
3	Horrible Harry and the birthday girl Suzy Kline	Level 3-4	Gentle
4	Horrible Harry and the Christmas surprise Suzy Kline	Level 2-3	Gentle
5	Horrible Harry and the dragon war Suzy Kline	Level 3-4	Gentle
6	Horrible Harry and the dungeon Suzy Kline	Level 3-4	Gentle
7	Horrible Harry and The Goog Suzy Kline	Level 3	Gentle
8	Horrible Harry and the hallway bully Suzy Kline	Level 3-4	Mild
9	Horrible Harry and the June box Suzy Kline	Level 3-4	Gentle
10	Horrible Harry and the locked closet Suzy Kline	Level 3-4	Gentle
11	Horrible Harry and the Mud Gremlins Suzy Kline	Level 3-4	Gentle
12	Horrible Harry and the scarlet scissors Suzy Kline	Level 3-4	Gentle
13	Horrible Harry and the secret treasure Suzy Kline	Level 3-4	Gentle
14	Horrible Harry and the stolen cookie Suzy Kline	Level 3-4	Mild
15	Horrible Harry at Halloween Suzy Kline	Level 3-4	Gentle
16	Horrible Harry goes cuckoo Suzy Kline	Level 3-4	Gentle
17	Horrible Harry goes to sea! Suzy Kline	Level 3-4	Gentle
18	Horrible Harry in room 2B Suzy Kline	Level 3-4	Gentle