The present paper attempts to explore the advantages of using posters in fostering vocabulary as a selfdirected learning tool among professional students at the tertiary level. A poster is a printed or manually designed paper/chart/flexi used for presenting a topic/concept/vocabulary item to the audience in an effective manner. As part of the study, the students prepared various posters of different sizes those consist of vocabulary items, grammar topics explained in an interesting manner providing various aspects such as definition, benefits, advantages, techniques and examples. The rationale of posters is to grab the attention of the teacher and their peers. These posters perform as teaching tools for developing language skills especially vocabulary among the students. It can be pasted on the classroom walls that explain a specific educational topic that makes them learn the topic effectively and effortlessly.They are content-based mainly focusing on the theme such as in ESL context, learning simple present, synonyms, idioms, one-word substitutes so on so forth. The sample of the present study was third-year undergraduate students of pharmacy who were studying in their second semester for the academic year 2017-18. Eighty participants took part in the experimental study. The students' questionnaires administered and poster presentations were made by the students on different topics in their classroom. It was found that poster presentations are beneficial for developing vocabulary knowledge and enhancing interest in learning vocabulary. It was suggested that there are some issues to be addressed for maximizing the benefits of using posters in the ESL context. It boosted students' morale and develop their language skills.The various recent developments in the fields of Science and Technology and other major fields have increased the demands of the English language in the higher education and in the job market. In learning a language, every learner has to master various skills such as listening, speaking, reading, writing, vocabulary, pronunciation and grammar. The basic foundation of all these language skills, the vocabulary is a very essential skill. In order to get command over the language, one must possess the knowledge of good vocabulary. It is observed that many language learners have difficulties and challenges due to inadequate knowledge of diction in their field of study. Vocabulary has a great significance in learning a language among the learners (Hatch & Brown, 1995). By adopting communicative teaching strategies that encourage to exchange of ideas among the learners through interaction in the form of pair/group work for developing vocabulary at the tertiary level can promote active language learning.In order to develop students' vocabulary skills, poster presentations are introduced for communication with an audience other than their classmates. These are considered to be an effective learning tool used for the enhancement of vocabulary in the language learning context.The present study would be sign...