Contrary to the developments in materials development and evaluation for language teaching, Materials Development and Evaluation still feels lags behind the theoretical and practical developments favoring teaching and testing fields. The former has not been much favored by the respective trend. Rationalized based on this gap, it seems sound enough to incorporate the tenets of teachability and learnability paradigms in the field. As an innovative attempt done in Iranian EFL context, this volume is a report of an empirical study on the incorporation of these two interdependent paradigms in the evaluation of the newly developed materials (i.e. Prospect Series) for Iranian EFL education program. However, the field obviously seems intact at the global scale in terms of further scholarly attempts so that an expected balanced development among all dimensions of language education can be warranted.