PowerPlus Books; Library of American Lives and Times Books in Order
3 books by David B. Mattern. Reading level: Grades 8–8.6. 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. PowerPlus Books; Library of American Lives and Times (3 books by David B. Mattern) lands at reading level Grades 8–8.6, with average content intensity 1.3/5. Intensity stays consistent across the series — a kid who can handle the first book can generally handle the rest.
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.
Content Intensity Across the Series
ConsistentContent stays at a steady intensity level throughout the series.
PowerPlus Books; Library of American Lives and Times Reading Order
| # | Title | Reading Level | Content |
|---|---|---|---|
| 1 | James Madison David B. Mattern | Level 8-9 | Gentle |
| 2 | Stephen F. Austin James L. Haley | Level 8 | Gentle |
| 3 | Wild Bill Hickok Joseph G. Rosa | Level 8-9 | Mild |
All PowerPlus Books; Library of American Lives and Times Books
Questions about the PowerPlus Books; Library of American Lives and Times series
- What reading level is the PowerPlus Books; Library of American Lives and Times series?
- The PowerPlus Books; Library of American Lives and Times series by David B. Mattern is at a Grades 8–8.6 reading level (average Grade 8.4). Intended for Middle Grades (Ages 9–12). There are 3 books in the series.
- What order should I read the PowerPlus Books; Library of American Lives and Times books?
- The reading-order table above lists all 3 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 PowerPlus Books; Library of American Lives and Times series appropriate for?
- The PowerPlus Books; Library of American Lives and Times series is recommended for Middle Grades (Ages 9–12). The average content intensity is 1.3/5. 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.