| Subjective
Criteria |
| Illustrations: Little support |
| Dialog: Multiple speakers |
| Dialog: Broken dialogue |
| Dialog: Unlabeled Speaker |
| Vocabulary: Some difficult words |
| Language: Colorful, figurative |
| Sentences: Many Long Complex |
| Text structure: Difficult |
| Inferences: Several Implications |
| Complexity: Several ideas - closely related |
| Concepts: Abstract/Difficult |
| Chapters |
| Mature concepts: With common experiences or clear fantasy |