The books are classified according to the following criteria:
ABET Level 1 / Grade 1– 3. Aimed at beginner readers, the books have one or very few sentences per page in large print accompanied by plentiful illustrations.
ABET Level 2 / Grade 4 – 5. The books have full pages of text in large print which is well-supported by illustrations. Language and style are simplified.
ABET Level 3 / Grade 6 – 7. The books have full pages of text in slightly larger than normal print with some illustrations. Language is still simplified but more difficult than previous levels. The books are longer with more complex sentences and style.
ABET Level 4 / Grade 8 – 9. The books have full pages of text in the same size print as Level 3 with a few illustrations. Language and style are more complicated but still slightly simplified. The books are longer and the themes more complex.
