Readability Textbooks 14 Evaluation 5 Reading comprehension 5 Study and teaching (Secondary) 5 English language 4 Arabic language 3 Ability testing 2 Discourse analysis 2 Readability (Literary style) 2 Reading 2 Reading (Secondary) 2 Science 2 Study and teaching 2 Textbooks for foreign speakers 2 Attitudes 1 Cloze procedure 1 Content area reading 1 Curricula 1 Elementary school teachers 1 Illustration of books 1 Legibility (Printing) 1 Malay language 1 Mathematics 1 Physics 1 Rhetoric 1 Scientific illustration 1 Sentences 1 Study and teaching (Higher) 1 Study and teaching (Primary) 1