Vocabulary Selection and Repetition in two EFL Advanced Textbooks

This book focuses on learning vocabulary through EFL textbooks. In other words, to what extent does the current textbooks can help in learning English language by considering the research recommendations regarding the types of vocabulary, based on their frequencies in English language, that need to be learned by a group of language learners in a particular level of English language proficiency. Analyzing the textbooks to find out the number of repetitions of the target vocabulary, based on the previous research results and recommendations, which is needed for learning each word. This is to explore how much are these textbooks appropriate for the target level as well as recommendations for further research and textbook writing.