This document outlines a study investigating the effects of using authentic materials in teaching English vocabulary. The study had two hypotheses: that authentic materials would help improve vocabulary learning and increase student motivation. Tests were administered before and after lessons using authentic materials from magazines, newspapers, movies and songs. Results showed students' vocabulary scores increased more after lessons with authentic materials than before. A motivation scale also found most students were highly motivated by the authentic materials. The conclusion was that authentic materials positively enhance vocabulary learning and increase student motivation. Recommendations included using authentic materials as supplements and integrating them with technology while considering cultural appropriateness.