This book is a guide to the evaluation and development of textbooks that focuses on the research on which they are based to the writing of the text. It also explores research into textbook effectiveness and provides an overview of the research in the field. The chapters are: (1) "Respondents' Opinions"; (2) "Evaluation of Textbooks by…

The purpose of this book is to introduce the research on readability, defined here as reading ease. The first part of the book covers how people read. A series of national literacy surveys show that the average person in the U.S. and most other countries are adults of limited reading skills. For example, the average adult in the U.S. reads at the…