Webster s paperbacks take advantage of the fact that classics are frequently assigned readings in English courses. By using a running English-to-Japanese thesaurus at the bottom of each page, this edition of The Secret Adversary by Agatha Christie was edited for three audiences. The first includes Japanese-speaking students enrolled in an English Language Program (ELP), an English as a Foreign Language (EFL) program, an English as a Second Language Program (ESL), or in a TOEFL® or TOEIC®