Textbook Evaluation: The Communicative Imperativeness of Illustrative Materials for Effective Teaching Outcomes in Nigeria

This paper examines the importance of effective graphics of communication in the design of books for effective teaching-learning outcomes. The paper underscores the critical importance of textbooks in the teaching-learning dyadic relationship. It reiterates the fact that textbooks are veritable sources of information and communication to the teachers and learners. It thus elucidates the need for the provision of suitable illustrative materials for textbook publishing and development. The paper then goes on to examine the critical issues when assessing and evaluating the quality of illustrations in books.